Michael G. FrothinghamAlexander D. LuskKatherine A. Alexander20250909https://doi.org/10.5066/P1OEFVQ4This data release presents geologic map data for the bedrock geology of the Blanding, Dove Creek, Cortez, and Bluff 30-minute by 60-minute quadrangles, Utah and Colorado. This 1:100,000 scale geologic mapping in the Colorado Plateau and Southern Rocky Mountains incorporates new interpretive contributions and compilation from 1:24,000 to 1:250,000 scale published geologic map data sources. Much of the geology incorporated from previous mapping is adjusted with Light Detection and Ranging (LiDAR) 1-meter digital elevation models, satellite imagery, and field observations in key localities to improve spatial resolution of the data and eliminate mismatches at source map boundaries. This data set also includes features mapped from airborne magnetic geophysical data. Bedrock geology is continuous across the entire map footprint (to the extent that map units and structures can be appropriately constrained), including areas overlain by surficial deposits. Deposits of unconsolidated surficial materials are not included in this bedrock database, but are instead published in a separate companion surficial database of the same footprint. Bedrock features that project through areas overlain by surficial deposits are indicated accordingly by attributes such as compilation method, identity confidence, existence confidence, and locational confidence. Bedrock includes all igneous, metamorphic, and sedimentary rocks regardless of age, which in this database range from Paleoproterozoic to Quaternary. Geologic provinces organize map units and structures based on time-dependent geologic events of continental to regional scales (e.g., Paleoproterozoic accretionary terranes, early Cordilleran orogenic basins, and Ignimbrite Flare-Up)—rather than geographic or rock type groupings that are typical of traditional geologic maps. The database follows the schema and structure of the Seamless Integrated Geologic Mapping (SIGMa; Turner and others, 2022) extension to the Geologic Map Schema (GeMS; USGS, 2020). The geologic data in this data release will be published through a USGS publication series, for example Open-file report, as a static, cartographic representation of the bedrock geology and will include a more detailed description of mapping methods. The cartographic map published through the USGS publication series will reflect a single visualization of the data and will be associated with a specific version of this data release, whereas this data release may be versioned as the state of geologic knowledge throughout the region evolves. This data release and subsequent versions will be the most current and authoritative source of the geologic information.The purpose of the data set is to present geologic map data at a variable scale from approximately 1:50,000 to 1:100,000 that will contribute to an intermediate-scale, seamless, and integrated geologic map database of the Intermountan West region.Files included in this USGS Data Release include: ------Shapefiles_CSVs.zip---------- CSV file duplicates of the non-spatail tables and shapefiles of feature classes in the file geodatabase. Field names and attributes will be cut off in shapefiles because of limitations on field name length and field characters. --ContactsAndFaults.[.cpg, .dbf, .prj, .sbn, .sbx, .shp, .shx, .shp.xml] --FoldAxisLines.[.cpg, .dbf, .prj, .sbn, .sbx, .shp, .shx, .shp.xml] --MapUnitLabels.[.cpg, .dbf, .prj, .sbn, .sbx, .shp, .shx, .shp.xml] --MapUnitPolys.[.cpg, .dbf, .prj, .sbn, .sbx, .shp, .shx, .shp.xml] --OrientationPoints.[.cpg, .dbf, .prj, .sbn, .sbx, .shp, .shx, .shp.xml] --GeologicProvincePolys.[.cpg, .dbf, .prj, .sbn, .sbx, .shp, .shx, .shp.xml] --Contributors.csv --DatabaseReleaseVersions.csv --DataSources.csv --DataSourcesList.csv --DescriptionOfMapUnits.csv --GeologicProvinces.csv --GeoMaterialDict.csv --RepurposedSymbols.csv --Glossary.csv --Methods.csv --TimeScale.csv ------Symbology.zip---------- layer files and stylx files for symbolization in ArcPro --ContactsAndFaults.lyrx --MapUnitPolys.lyrx --OrientationPoints.lyrx --FoldAxisLines.lyrx --GeologicProvince1.lyrx --GeologicProvince2.lyrx --GeologicProvince3.lyrx ------P1OEFVQ4_BedrockGeologicMap.gdb.zip---------- P1OEFVQ4_BedrockGeologicMap.gdb[File geodatabse] --GeologicMap[Feature dataset] ----ContactsAndFaults[Feature class] ----FoldAxixLines[Feature class] ----MapUnitLabels[Feature class] ----MapUnitPolys[Feature class] ----OrientationPoints[Feature class] --Contributors[Non-spatial table] --DataReleaseVersions[Non-spatial table] --DataSources[Non-spatial table] --DataSourcesList[Non-spatial table] --DescriptionOfMapUnits[Non-spatial table] --GeologicProvinces[Non-spatial table] --GeologicProvincePolys[Feature class] --GeoMaterialDict[Non-spatial table] --Glossary[Non-spatial table] --RepurposedSymbols[Non-spatial table] --Methods[Non-spatial table] --TimeScale[Non-spatial table] --DataSources_DataSourcesList[Relationship class] --DataSourcesList_ContactsAndFaults[Relationship class] --DataSourcesList_DescriptionOfMapUnits_DescriptionSourceID[Relationship class] --DataSourcesList_DescriptionOfMapUnits_NumAgeSourceID[Relationship class] --DataSourcesList_FoldAxisLines[Relationship class] --DataSourcesList_GeologicProvinces[Relationship class] --DataSourcesList_Glossary[Relationship class] --DataSourcesList_MapUnitLabels[Relationship class] --DataSourcesList_MapUnitPolys[Relationship class] --DataSourcesList_TimeScale[Relationship class] --DescriptionOfMapUnits_ContactsAndFaults[Relationship class] --DescriptionOfMapUnits_MapUnitLabels[Relationship class] --DescriptionOfMapUnits_MapUnitPolys[Relationship class] --DescriptionOfMapUnits_OrientationPoints[Relationship class] --GeologicProvinces_DescriptionOfMapUnits[Relationship class] --Methods_ContactsAndFaults[Relationship class] --Methods_FoldAxisLines[Relationship class] --Methods_MapUnitLabels[Relationship class] --Methods_MapUnitPolys[Relationship class] --Methods_OrientationPoints[Relationship class] P1OEFVQ4_BedrockGeologicMap is a composite geodataset that conforms to GeMS (Geologic Map Schema)--a standard format for the digital publication of geologic maps", available at http://ngmdb.usgs.gov/Info/standards/GeMS/. Metadata records associated with each element within the geodataset contain more detailed descriptions of their purposes, constituent entities, and attributes.). An OPEN shapefile versions of the dataset is also available. It consists of shapefiles, DBF files, and delimited text files and retains all information in the native geodatabase, but some programming will likely be necessary to assemble these components into usable formats. These metadata were prepared with the aid of script GeMS_FGDCMetadata_AGP2.py, version of 14 June 2023. P1OEFVQ4_BedrockGeologicMap is a composite geodataset that conforms to GeMS (Geologic Map Schema)--a standard format for the digital publication of geologic maps", available at http://ngmdb.usgs.gov/Info/standards/GeMS/. Metadata records associated with each element within the geodataset contain more detailed descriptions of their purposes, constituent entities, and attributes.). An OPEN shapefile versions of the dataset is also available. It consists of shapefiles, DBF files, and delimited text files and retains all information in the native geodatabase, but some programming will likely be necessary to assemble these components into usable formats. These metadata were prepared with the aid of script GeMS_FGDCMetadata_AGP2.py, version of 14 June 2023.20250909Publication date.CompleteAs needed-110.1870-107.841238.210036.7877USGS Thesaurusgeologic mapsfaultingfoldingigneous rockssedimentary rocksmetamorphic rocksNoneRio Grande RiftSouthern Rocky Mountains volcanic fieldNavajo volcanic fieldIgnimbrite flare-upColorado Mineral BeltLaramide orogenySevier orogenyColorado PlateauAncestral Rocky MountainsWestern Interior BasinYavapai terraneUSGS Metadata IdentifierUSGS:6ca6d1cf-808c-4525-9593-a3fd1f1d5bcdNoneUtahColoradoSan Juan RiverDolores RiverLa Plata RiverMancos RiverSan Miguel RiverAbajo MountainsSleeping Ute MountainLa Plata MountainsRico MountainsSan Miguel MountainsSan Juan BasinParadox BasinMesa Verde National ParkCanyonlands National ParkDivisions of geologic time-major chronostratigraphic and geochronologic units (USGS, 2018)ProterozoicMississippianPennsylvanianPermianTriassicJurassicCretaceousPaleoceneEoceneOligoceneMiocenePliocenePleistoceneNoneUnless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty.Michael G. FrothinghamMailing Address

Denver Federal Center, MS 980 (Building 25)

DenverCO80225United States303-236-4610mfrothingham@usgs.govConfidence that a feature exists and confidence that a feature is correctly identified are described in per-feature attributes ExistenceConfidence and IdentityConfidence. Confidence that a feature exists and confidence that a feature is correctly identified are described in per-feature attributes ExistenceConfidence and IdentityConfidence.All data fell within expected ranges. No duplicates or omissions were found in the datasets.Individual entries are considered complete within this data set. The data set as a whole will be updated and expanded semi-annually.Estimated accuracy of horizontal location is given on a per-feature basis by attribute LocationConfidenceMeters. Values are expected to be correct within a factor of 2. A LocationConfidenceMeters value of -9 or -9999 indicates that no value has been assigned. Estimated accuracy of horizontal location is given on a per-feature basis by attribute LocationConfidenceMeters. Values are expected to be correct within a factor of 2. A LocationConfidenceMeters value of -9 or -9999 indicates that no value has been assigned.Trujillo, K.C., and Kowallis, B.J.2015https://doi.org/10.31711/giw.v2Publication2015Publication dateTrujillo and Kowallis, 2015Source contributed to the generation of this mapImlay, R.W.1980https://doi.org/10.3133/pp1062Publication1980Publication dateImlay, 1980Source contributed to the generation of this mapCater, F.W.1955https://doi.org/10.3133/gq68Publication1955Publication dateCater, 1955bSource contributed to the generation of this mapWengerd, S.A., and Matheny, M.L.1958https://doi.org/10.1306/0BDA5BA9-16BD-11D7-8645000102C1865DPublication1958Publication dateWengerd and Matheny, 1958Source contributed to the generation of this mapWengerd, S.A., and Strickland, J.W.1954https://doi.org/10.1306/5CEAE07C-16BB-11D7-8645000102C1865DPublication1954Publication dateWengerd and Strickland, 1954Source contributed to the generation of this mapBaars, 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this mapHarshbarger, J.W., Repenning, C.A., and Irwin, J.H.1957https://doi.org/10.3133/pp291Publication1957Publication dateHarshbarger and others, 1957Source contributed to the generation of this mapLuedke, R.G., and Burbank, W.S.1987https://doi.org/10.3133/gq1595Publication1987Publication dateLuedke and Burbank, 1987Source contributed to the generation of this mapLuedke, R.G., and Burbank, W.S.2000https://doi.org/10.3133/i2681Publication2000Publication dateLuedke and Burbank, 2000Source contributed to the generation of this mapLuedke, R.G., and Burbank, W.S.1996https://doi.org/10.3133/gq1760Publication1996Publication dateLuedke, 1996Source contributed to the generation of this mapMuehlberger, W.R., Adams, G.E., Longwood, T.E., and St. John, B.E.1967https://doi.org/10.58799/B-89Publication1967Publication dateMuehlberger and others, 1967Source contributed to the generation of this mapLandis, E.R., and Dane, C.H.1968https://doi.org/10.58799/GM-19Publication1968Publication dateLandis and 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mapMcKee, E.D.1954https://doi.org/10.1130/MEM61-p1Publication1954Publication dateMcKee, 1954Source contributed to the generation of this mapChetel, L.M., Janecke, S.U., Carroll, A.R., Beard, B.L., Johnson, C.M., and Singer, B.S.2011https://doi.org/10.1130/B30213.1Publication2011Publication dateChetel and others, 2011Source contributed to the generation of this mapTanner, L.H., and Lucas, S.G.2007https://doi.org/10.1016/j.palaeo.2005.06.039Publication2007Publication dateTanner and Lucas, 2007Source contributed to the generation of this mapBeard, L.S., Anderson, R.E., Bohannon, R.G., Brady, R.J., Castor, S.B., Duebendorfer, E.M., Faulds, J.E., Felger, T.J., Howard, K.A., Kuntz, M.A., and Williams, V.S.2007https://doi.org/10.3133/ofr20071010Publication2007Publication dateBeard and others, 2007Source contributed to the generation of this mapCohen, K.M., Finney, S.C., Gibbard, P.L., and Fan, J.X.2013https://doi.org/10.18814/epiiugs/2013/v36i3/002Publication2013Publication dateCohen and others, (2013; updated)Source contributed to the generation of this mapCross, W., and Ransome, F.L.1905https://doi.org/10.3133/gf130Publication1905Publication dateCross and Ransome, 1905Source contributed to the generation of this mapMiller, C.F.1956https://doi.org/10.3133/i127Publication1956Publication dateMiller, 1956bSource contributed to the generation of this mapMiller, C.F.1955https://doi.org/10.3133/i61Publication1955Publication dateMiller, 1955dSource contributed to the generation of this mapMiller, C.F.1955https://doi.org/10.3133/i64Publication1955Publication dateMiller, 1955cSource contributed to the generation of this mapBell, T.E.1986https://doi.org/10.1306/St22455C6Publication1986Publication dateBell, 1986Source contributed to the generation of this mapHackman, R.J.1959https://doi.org/10.3133/i281Publication1959Publication dateHackman, 1959Source contributed to the generation of this mapHackman, R.J.1955https://doi.org/10.3133/i90Publication1955Publication dateHackman, 1955cSource contributed to the generation of this mapHackman, R.J.1955https://doi.org/10.3133/i91Publication1955Publication dateHackman, 1955bSource contributed to the generation of this mapHackman, R.J.1955https://doi.org/10.3133/i94Publication1955Publication dateHackman, 1955dSource contributed to the generation of this mapHackman, R.J.1955https://doi.org/10.3133/i92Publication1955Publication dateHackman, 1955Source contributed to the generation of this mapHackman, R.J.1955https://doi.org/10.3133/i95Publication1955Publication dateHackman, 1955eSource contributed to the generation of this mapBaltz, E.H.1967https://doi.org/10.3133/pp552Publication1967Publication dateBaltz, 1967Source contributed to the generation of this mapBaker, A.A., Dane, C.H., and Reeside, J.B., Jr.1936https://doi.org/10.3133/pp183Publication1936Publication dateBaker and others, 1936Source contributed to the generation of this mapU.S. Geological Survey [USGS]2006https://ngmdb.usgs.gov/fgdc_gds/geolsymstd.phpPublication2006Publication dateUSGS, 2006Source contributed to the generation of this mapO'Sullivan, R.B., and Beikman, H.M.1963https://doi.org/10.3133/i345Publication1963Publication dateO'Sullivan and Beikman, 1963Source contributed to the generation of this mapScott, G.R., and Moore, D.W.1981https://doi.org/10.3133/ofr811317Publication1981Publication dateScott and Moore, 1981Source contributed to the generation of this mapWard, A.W.1990https://doi.org/10.3133/i1978Publication1990Publication dateWard, 1990Source contributed to the generation of this mapBurbank, W.S., and Luedke, R.G.1964https://doi.org/10.3133/gq291Publication1964Publication dateBurbank and Luedke, 1964Source contributed to the generation of this mapGibson, R.G., and Harris, C.W.1992https://store.geosociety.org/products/MCH075PPublication1992Publication dateGibson and Harris, 1992Source contributed to the generation of this mapGonzales, D.A., and Van Schmus, W.R.2007https://doi.org/10.1016/j.precamres.2006.12.001Publication2007Publication dateGonzales and Van Schmus, 2007Source contributed to the generation of this mapGonzales, D.A.2015https://doi.org/10.31582/rmag.mg.52.2.5Publication2015Publication dateGonzales, 2015Source contributed to the generation of this mapGIlluly, J., and Reeside Jr., J.B.1928https://doi.org/10.3133/pp150DPublication1928Publication dateGilluly and Reeside, 1928Source contributed to the generation of this mapGregory, H.E.1917https://doi.org/10.3133/pp93Publication1917Publication dateGregory, 1917Source contributed to the generation of this mapGregory, H.E.1938https://doi.org/10.3133/pp188Publication1938Publication dateGregory, 1938Source contributed to the generation of this mapGonzales, D.A., and Lake, E.T.2017https://doi.org/10.1130/GES01314.1Publication2017Publication dateGonzales and Lake, 2017Source contributed to the generation of this mapDoelling, H.H.2004https://doi.org/10.34191/M-205Publication2004Publication dateDoelling, 2004Source contributed to the generation of this mapMiall, A.D., Catuneanu, O., Vakarelov, B.K., and Post, R.2008https://doi.org/10.1016/S1874-5997(08)00009-9Publication2008Publication dateMiall and others, 2008Source contributed to the generation of this mapCarroll, C.J., Kirkham, R.M., and Wilson, S.C.1998https://doi.org/10.58783/cgs.of9802.hwmb1149Publication1998Publication dateCarroll and others, 1998Source contributed to the generation of this mapCarroll, C.J., Kirkham, R.M., and Wracher, A.2014https://coloradogeologicalsurvey.org/publications/geologic-map-rules-hill-quadrangle-la-plata-colorado/Publication2014Publication dateCarroll and others, 2014Source contributed to the generation of this mapBurbank, W.S.1930https://coloscisoc.org/proceedings-of-the-css-vol-12/Publication1930Publication dateBurbank, 1930Source contributed to the generation of this mapCarrara, P.E.2012https://doi.org/10.3133/sim3224Publication2012Publication dateCarrara, 2012Source contributed to the generation of this mapBurbank, W.S., and Luedke, R.G.1966https://doi.org/10.3133/gq504Publication1966Publication dateBurbank and Luedke, 1966Source contributed to the generation of this mapCarroll, C.J., Gillam, M.L., Ruf, J.C., Loseke, T.D., and Kirkham, R.M.1999https://doi.org/10.58783/cgs.of9906.zmlb6620Publication1999Publication dateCarroll and others, 1999Source contributed to the generation of this mapBirkeland, P. W., Miller, D.C., Patterson, P.E., Price, A.B., and Schroba, R.R.1996https://coloradogeologicalsurvey.org/publications/soil-geomorphic-rocky-flats-boulder-golden-fountain-paleosol-wahlstrom-colorado/Publication1996Publication dateBirkeland and others, 1996Source contributed to the generation of this mapKelley, S.A., Lawrence, J.R., and Osburn, G.R.2005https://doi.org/10.58799/OF-GM-106Publication2005Publication dateKelley and others, 2005bSource contributed to the generation of this mapCross, W., Howe, E., and Ransome, F.L.1905https://doi.org/10.3133/gf120Publication1905Publication dateCross and others, 1905bSource contributed to the generation of this mapCross, W., Spencer, A.C., and Purington, C.W.1899https://doi.org/10.3133/gf60Publication1899Publication dateCross and others, 1899Source contributed to the generation of this mapCross, W., Howe, E., Irving, J.D., and Emmons, W.H.1905https://doi.org/10.3133/gf131Publication1905Publication dateCross and others, 1905Source contributed to the generation of this mapCross, W., and Hole, A.D.1910https://doi.org/10.3133/gf171Publication1910Publication dateCross and Hole, 1910Source contributed to the generation of this mapCooley, M.E., Harshbarger, J.W., Akers, J.P., Hardt, W.F., and Hicks, O.N.1969https://doi.org/10.3133/pp521APublication1969Publication dateCooley and others, 1969Source contributed to the generation of this mapConey, P., and Reynolds, S.1977https://doi.org/10.1038/270403a0Publication1977Publication dateConey and Reynolds, 1977Source contributed to the generation of this mapCrouse, D.C., Hultgren, M.C., and Woodward, L.A.1992https://doi.org/10.58799/GM-67Publication1992Publication dateCrouse and others, 1992Source contributed to the generation of this mapHackman, R.J.1952https://doi.org/10.3133/ofr5264Publication1952Publication dateHackman, 1952cSource contributed to the generation of this mapHackman, R.J.1955https://doi.org/10.3133/i96Publication1955Publication dateHackman, 1955fSource contributed to the generation of this mapHackman, R.J.1952https://doi.org/10.3133/ofr5263Publication1952Publication dateHackman, 1952Source contributed to the generation of this mapHackman, R.J.1955https://doi.org/10.3133/i97Publication1955Publication dateHackman, 1955gSource contributed to the generation of this mapHackman, R.J.1955https://doi.org/10.3133/i93Publication1955Publication dateHackman, 1955hSource contributed to the generation of this mapHackman, R.J.1952https://doi.org/10.3133/ofr5265Publication1952Publication dateHackman, 1952bSource contributed to the generation of this mapFinley, E.A.1951https://doi.org/10.3133/om120Publication1951Publication dateFinley, 1951Source contributed to the generation of this mapDeCelles, P.G.2011https://doi.org/10.1002/9781444347166.ch20Publication2011Publication dateDeCelles, 2011Source contributed to the generation of this mapDeCelles, P.G.2004https://doi.org/10.2475/ajs.304.2.105Publication2004Publication dateDeCelles, 2004Source contributed to the generation of this mapDeCelles, P.G., and Giles, K.A.1996https://doi.org/10.1046/j.1365-2117.1996.01491.xPublication1996Publication dateDeCelles and Giles, 1996Source contributed to the generation of this mapDickinson, W.R.2004https://doi.org/10.1146/annurev.earth.32.101802.120257Publication2004Publication dateDickinson, 2004Source contributed to the generation of this mapDubiel, R.F.1982https://doi.org/10.3133/ofr82729Publication1982Publication dateDubiel, 1982Source contributed to the generation of this mapDubiel, R.F., Huntoon, J.E., Stanesco, J.D., and Hasiotis, S.T.2014https://geology.utah.gov/geology-of-utahs-far-south/Publication2014Publication dateDubiel and others, 2014Source contributed to the generation of this mapEckel, E.B.1949https://doi.org/10.3133/pp219Publication1949Publication dateEckel, 1949Source contributed to the generation of this mapBlakey, R.C., Peterson, F., Caputo, M.V., Geesaman, R.C., and Voorhees, B.J.1983https://archives.datapages.com/data/rocky_sepm/data/011/011001/77_rocky_mount110077.htmPublication1983Publication dateBlakey and others, 1983Source contributed to the generation of this mapGonzales, D.A., Frechette, J.D., Stahr, D.W., III, Osmera, T., Morse, N., and Graham, K.2004https://coloradogeologicalsurvey.org/publications/geologic-map-vallecito-reservoir-quadrangle-la-plata-coloradoPublication2004Publication dateGonzales and others, 2004Source contributed to the generation of this mapSchwartz, T.M., Dechesne, M., and Zellman, K.L.2021https://doi.org/10.2110/jsr.2020.081Publication2021Publication dateSchwartz and others, 2021Source contributed to the generation of this mapStewart, J.H., Poole, F.G., Wilson, R.F., and Cadigan, R.A.1972https://doi.org/10.3133/pp691Publication1972Publication dateStewart and others, 1972bSource contributed to the generation of this mapSteven, T.A., Lipman, P.W., Hail, W.J., Jr., Barker, F., and Luedke, R.G.1974https://doi.org/10.3133/i764Publication1974Publication dateSteven and others, 1974Source contributed to the generation of this mapSuttner, L.J., Schwartz, R.K., and James, W.C.1981https://archives-datapages-com.usgslibrary.idm.oclc.org/data/mgs/mt/data/0038/0093/0093.htmlPublication1981Publication dateSuttner and others, 1981Source contributed to the generation of this mapLawton, T.F.2008https://doi.org/10.1016/S1874-5997(08)00012-9Publication2008Publication dateLawton, 2008Source contributed to the generation of this mapKelley, S.A., Lawrence, J.R., Zeigler, K.E., Osburn, G.R., and Lucas, S.G.2006https://doi.org/10.58799/OF-GM-124Publication2006Publication dateKelley and others, 2006Source contributed to the generation of this mapHuntoon, P.W., Billingsley, G.H., Jr., and Breed, W.J.1982Publication1982Publication dateHuntoon and others, 1982Source contributed to the generation of this mapKirkham, R.M., Gillam, M.L., Loseke, T.D., Ruf, J.C., and Carroll, C.J.1999https://doi.org/10.58783/cgs.of9904.xwln7545Publication1999Publication dateKirkham and others, 1999Source contributed to the generation of this mapKirby, S.M.2008https://doi.org/10.34191/SS-123Publication2008Publication dateKirby, 2008Source contributed to the generation of this mapKirkham, R.M., and Navarre, A.K.2003https://doi.org/10.58783/cgs.of0104.fgpn4242Publication2003Publication dateKirkham and Navarre, 2003Source contributed to the generation of this mapKirkham, R.M, Gonzales, D.A., Poitras, C., Remley, K., and Allen, D.2000https://doi.org/10.58783/cgs.of0004.hkho3118Publication2000Publication dateKirkham and others, 2000Source contributed to the generation of this mapHillenbrand, I.W., Williams, M.L., Karlstrom, K.E., Gilmer, A.K., Lowers, H.A., Jercinovic, M.J., Suarez, K.A., and Souders, A.K.2023https://doi.org/10.1130/GES02631.1Publication2023Publication dateHillenbrand and others, 2023Source contributed to the generation of this mapHolland, M.E., Grambling, T.A., Karlstrom, K.E., Jones, J.V., III, Nagotko, K.N., and Daniel, C.G.2020https://doi.org/10.1016/j.precamres.2020.105820Publication2020Publication dateHolland and others, 2020Source contributed to the generation of this mapHumphreys, E., Hessler, E., Dueker, K., Farmer, G.L., Erslev, E., and Atwater, T.2003http://doi.org/10.2747/0020-6814.45.7.575Publication2003Publication dateHumphreys and others, 2003Source contributed to the generation of this mapKelley, S.A., Osburn, G.R., Ferguson, C., Moore, J., and Kempter, K.2005https://doi.org/10.58799/OF-GM-107Publication2005Publication dateKelley and others, 2005Source contributed to the generation of this mapLawton, T.F., Blakey, R.C., Stockli, D.F., and Liu, L.2021https://doi.org/10.1016/j.palaeo.2021.110386Publication2021Publication dateLawton and others, 2021Source contributed to the generation of this mapLeary, R.J., Umhoefer, P., Smith, M.E., and Riggs, N.2017https://doi.org/10.1130/G39041.1Publication2017Publication dateLeary and others, 2017Source contributed to the generation of this mapAubry M.-P., Miller, K.G., Turco, E., Flores, J.A., Gladenkov, A., Grunert, P., Hilgen, F., Nishi, H., Holbourn, A., Krijgsman, W., Lirer, F., Piller, W.E., Quillévéré, F., Raffi, I., Robinson, M., Rook, L., Tian, J., Triantaphyllou, M., and Vallejo, F.2022https://doi.org/10.18814/epiiugs/2022/022008Publication2022Publication dateAubry and others, 2022Source contributed to the generation of this mapPoole, F.G., Stewart, J.H., Palmer, A.R., Sandberg, C.A., Madrid, R.J., Ross, R.J., Jr., Hintze, L.F., Miller, M.M., and Wrucke, C.T.1992https://doi.org/10.1130/DNAG-GNA-G3.9Publication1992Publication datePoole and others, 1992Source contributed to the generation of this mapSaleeby, J.B., Busby-Spera, C., Oldow, J.S., Dunne, G.C., Wright, J.E., Cowan, D.S., Walker, N.W., and Allmendinger, R.W.1992https://doi.org/10.1130/DNAG-GNA-G3.107Publication1992Publication dateSaleeby and others, 1992Source contributed to the generation of this mapLipman, P.W.1992https://doi.org/10.1130/DNAG-GNA-G3.481Publication1992Publication dateLipman, 1992Source contributed to the generation of this mapPeterson, Fred, and Pipiringos, G.N.1979https://doi.org/10.3133/pp1035BPublication1979Publication datePeterson and others, 1979Source contributed to the generation of this mapPadian, K.1989https://doi.org/10.1130/0091-7613(1989)017<0438:POTDSI>2.3.CO;2Publication1989Publication datePadian, 1989Source contributed to the generation of this mapAby, S., Timmons, J.M., and Miller, P.L2016https://doi.org/10.58799/OF-GM-257Publication2016Publication dateAby and others, 2016Source contributed to the generation of this mapLawrence, J.R., Kelley, S., and Rampey, M.2004https://doi.org/10.58799/OF-GM-87Publication2004Publication dateLawrence and others, 2004Source contributed to the generation of this mapMaldonado, F., and Kelley, S.A.2009https://doi.org/10.58799/NMG-v31n1.3Publication2009Publication dateMaldonado and Kelley, 2009Source contributed to the generation of this mapHook, S.C., and Cobban, W.A.1980https://doi.org/10.58799/NMG-v2n2.17Publication1980Publication dateHook and Cobban, 1980Source contributed to the generation of this mapAnderson, O.J., and Lucas, S.G.1992https://doi.org/10.58799/NMG-v14n4.79Publication1992Publication dateAnderson and Lucas, 1992Source contributed to the generation of this mapBauer, P.W., and Williams, M.L.1989https://doi.org/10.58799/NMG-v11n3.45Publication1989Publication dateBauer and Williams, 1989Source contributed to the generation of this mapPipiringos, G.N., and O'Sullivan, R.B.1978https://doi.org/10.3133/pp1035APublication1978Publication datePipiringos and O’Sullivan, 1978Source contributed to the generation of this mapGibson, R.G.1987http://hdl.handle.net/10919/76096Publication1987Publication dateGibson, 1987Source contributed to the generation of this mapLoope, D.B., Sanderson, G.A., and Verville, G.J.1990https://archives.datapages.com/data/rmag/mg/1990/loope.htmPublication1990Publication dateLoope and others, 1990Source contributed to the generation of this mapLund, K., Box, S.E., Holm-Denoma, C.S., San Juan, C.A., Blakely, R.J., Saltus, R.W., Anderson, E.D., and DeWitt, E.H.2015https://doi.org/10.3133/ds898Publication2015Publication dateLund and others, 2015Source contributed to the generation of this mapMiller, C.F.1955https://doi.org/10.3133/i82Publication1955Publication dateMiller, 1955Source contributed to the generation of this mapMiller, C.F.1955https://doi.org/10.3133/i63Publication1955Publication dateMiller, 1955bSource contributed to the generation of this mapMiller, C.F.1955https://doi.org/10.3133/i54Publication1955Publication dateMiller, 1955eSource contributed to the generation of this mapMiller, C.F.1956https://doi.org/10.3133/i126Publication1956Publication dateMiller, 1956Source contributed to the generation of this mapMytton, J.W.1983https://doi.org/10.3133/coal92APublication1983Publication dateMytton, 1983Source contributed to the generation of this mapNaeser, C.W.1971https://doi.org/10.1029/JB076i020p04978Publication1971Publication dateNaeser, 1971Source contributed to the generation of this mapNaeser, C.W., Cunningham, C.G., Marvin, R.F., and Obradovich, J.D.1980https://doi.org/10.2113/gsecongeo.75.1.122Publication1980Publication dateNaeser and others, 1980Source contributed to the generation of this mapO'Sullivan, R.B.1970https://doi.org/10.3133/pp644EPublication1970Publication dateO'Sullivan, 1970Source contributed to the generation of this mapO'Sullivan, R.B.1995https://doi.org/10.3133/oc144Publication1995Publication dateO'Sullivan, 1995Source contributed to the generation of this mapO'Sullivan, R.B.2019https://doi.org/10.34191/OFR-713DRPublication2019Publication dateO'Sullivan, 2019Source contributed to the generation of this mapScott, G.R., and Moore, D.W.2007https://doi.org/10.3133/sir20075006Publication2007Publication dateScott and Moore, 2007Source contributed to the generation of this mapShaw, C.A., and Karlstrom, K.E.1999https://doi.org/10.2113/34.1.37Publication1999Publication dateShaw and Karlstrom, 1999Source contributed to the generation of this mapOrkild, P.P.1955https://doi.org/10.3133/i80Publication1955Publication dateOrkild, 1955bSource contributed to the generation of this mapOrkild, P.P.1955https://doi.org/10.3133/i53Publication1955Publication dateOrkild, 1955Source contributed to the generation of this mapO'Sullivan, R.B., Carey, M.A., and Good, S.C.2006https://doi.org/10.3133/sir20065105Publication2006Publication dateO'Sullivan and others, 2006Source contributed to the generation of this mapScott, G.R.1982https://doi.org/10.3133/i1378Publication1982Publication dateScott, 1982Source contributed to the generation of this mapShawe, D.R., Simmons, G.C., and Rogers, W.B.1968https://doi.org/10.3133/pp576APublication1968Publication dateShawe and others, 1968Source contributed to the generation of this mapRobinson-Roberts, L.N., and Kirschbaum, M.A.1995https://doi.org/10.3133/pp1561Publication1995Publication dateRobinson-Roberts and Kirschbaum, 1995Source contributed to the generation of this mapRoden, M.F., Smith, D., and McDowell, F.W.1979https://doi.org/10.1016/0012-821X(79)90212-7Publication1979Publication dateRoden and others, 1979Source contributed to the generation of this mapBoyer, R.E.1962http://doi.org/10.1130/0016-7606(1962)73%5B1047:PASOTS%5D2.0.CO;2Publication1962Publication dateBoyer, 1962Source contributed to the generation of this mapHarris, C.W.1990https://doi.org/10.1130/0016-7606(1990)102%3C0664:PSDIMR%3E2.3.CO;2Publication1990Publication dateHarris, 1990Source contributed to the generation of this mapArmstrong, R.L.1969https://doi.org/10.1130/0016-7606(1969)80[2081:KDOLCO]2.0.CO;2Publication1969Publication dateArmstrong, 1969Source contributed to the generation of this mapTewksbury, B.J.1985https://doi.org/10.1130/0016-7606(1985)96%3C224:RIOTAO%3E2.0.CO;2Publication1985Publication dateTewksbury, 1985Source contributed to the generation of this mapArmstrong, R.L.1972https://doi.org/10.1130/0016-7606(1972)83[1729:LDFHOT]2.0.CO;2Publication1972Publication dateArmstrong, 1972Source contributed to the generation of this mapU.S. Geological Survey2024https://doi.org/10.5066/P1F3EHPNPublication2024Publication dateGeological and Survey, 2024Source contributed to the generation of this mapIngersoll, R.V., Cavazza, W., Baldridge, W.S., and Shafiqullah, M.1990https://doi.org/10.1130/0016-7606(1990)102%3C1280:CSAPON%3E2.3.CO;2Publication1990Publication dateIngersoll and others, 1990Source contributed to the generation of this mapLipman, P.W., Steven, T.A., and Mehnert, H.H.1970https://doi.org/10.1130/0016-7606(1970)81[2329:VHOTSJ]2.0.CO;2Publication1970Publication dateLipman and others, 1970Source contributed to the generation of this mapShawe, D.R., Simmons, G.C., and Rogers, W.B.1961https://doi.org/10.3133/mf203Publication1961Publication dateShawe and others, 1961Source contributed to the generation of this mapSchwartz, R.K.1982https://archives-datapages-com.usgslibrary.idm.oclc.org/data/rmag/GeoStudCordV1_82/schwartz.htmPublication1982Publication dateSchwartz, 1982Source contributed to the generation of this mapHawkins, D.P., Bowring, S.A., Ilg, B.R., Karlstrom, K.E., and Williams, M.L.1996https://doi.org/10.1130/0016-7606(1996)108<1167:UPGCOT>2.3.CO;2Publication1996Publication dateHawkins and others, 1996Source contributed to the generation of this mapLipman, P.W.2007https://doi.org/10.1130/GES00061.1Publication2007Publication dateLipman, 2007Source contributed to the generation of this mapSlattery, J.S., Cobban, W.A., McKinney, K.C., Harries, P.J., and Sandness, A.L.2015http://doi.org/10.13140/RG.2.1.4439.8801Publication2015Publication dateSlattery and others, 2015Source contributed to the generation of this mapSmith, D., Connelly, J.N., Manser, K., Moser, D.E., Housh, T.B., McDowell, F.W., and Mack, L.E2004https://doi.org/10.1029/2003GC000675Publication2004Publication dateSmith and others, 2004bSource contributed to the generation of this mapMarvin, R.F., Wright, J.C., and Walthall, F.G.1965https://doi.org/10.3133/pp525BPublication1965Publication dateMarvin and others, 1965Source contributed to the generation of this mapDutton, C.E.1885https://doi.org/10.3133/ar6Publication1885Publication dateDutton, 1885Source contributed to the generation of this mapSnyder, W.S., Dickinson, W.R., and Silberman, M.L.1976https://doi.org/10.1016/0012-821X(76)90189-8Publication1976Publication dateSnyder and others, 1976Source contributed to the generation of this mapSterne, E.J., and Constenius, K.N.1997https://archives.datapages.com/data/rmag/geohistfrontrange1997/sterne_b.htmPublication1997Publication dateSterne and Constenius, 1997Source contributed to the generation of this mapSteven, T.A., and Hail, W.J., Jr.1989https://doi.org/10.3133/i1939Publication1989Publication dateSteven and Hail, 1989Source contributed to the generation of this mapSemken, S.2003https://doi.org/10.56577/FFC-54.133Publication2003Publication dateSemken, 2003Source contributed to the generation of this mapLucas, S.G., Heckert, A.B., Estep, J.W., Orin, J.A., and Kues, B.S.1997https://doi.org/10.56577/FFC-48.81Publication1997Publication dateLucas and others, 1997bSource contributed to the generation of this mapGrambling, T.A., Holland, M., Karlstromn, K.E., Gehrels, G.E., and Pecha, M.2015https://doi.org/10.56577/FFC-66.175Publication2015Publication dateGrambling and others, 2015Source contributed to the generation of this mapKarlstrom, K.E., Gonzales, D.A., Heizler, M., and Zinnser, A.2017https://doi.org/10.56577/FFC-68.83Publication2017Publication dateKarlstrom and others, 2017Source contributed to the generation of this mapLucas, S.G., and Anderson, O.J.1997https://doi.org/10.56577/FFC-48Publication1997Publication dateLucas and Anderson, 1997Source contributed to the generation of this mapGonzales, D.A.2017https://doi.org/10.56577/FFC-68.91Publication2017Publication dateGonzales, 2017Source contributed to the generation of this mapChapin, C.E., and Cather, S.M.1994https://doi.org/10.1130/SPE291Publication1994Publication dateChapin and Cather, 1994Source contributed to the generation of this mapDickinson, W.R.2018https://doi.org/10.1130/SPE533Publication2018Publication dateDickinson, 2018Source contributed to the generation of this mapErslev, E.A.1993https://doi.org/10.1130/SPE280-p339Publication1993Publication dateErslev, 1993Source contributed to the generation of this mapBrookins, D.G., and Rigby, J.K.1987https://doi.org/10.1130/SPE209-p105Publication1987Publication dateBrookins and Rigby, 1987Source contributed to the generation of this mapStewart, J.H., and Poole, F.G.1974https://doi.org/10.2110/pec.74.22.0028Publication1974Publication dateStewart and Poole, 1974Source contributed to the generation of this mapBiddle, K.T. and Christie-Blick, N.1985https://doi.org/10.2110/pec.85.37Publication1985Publication dateBiddle and others, 1985Source contributed to the generation of this mapSullivan, K.R., Kowallis, B.J., and Mehnert, H.H.1991https://geology.byu.edu/volume-37Publication1991Publication dateSullivan and others, 1991Source contributed to the generation of this mapKarlstrom, K.E., and Bowring, S.A.1988https://doi.org/10.1086/629252Publication1988Publication dateKarlstrom and Bowring, 1988Source contributed to the generation of this mapBlakey, R.C.1974https://ugspub.nr.utah.gov/publications/bulletins/B-104.pdfPublication1974Publication dateBlakey, 1974Source contributed to the generation of this mapKelley, S.A., Kempter, K.A., McIntosh, W.C., Maldonado, F., Smith, G.A., Connell, S.D., Koning, D.J., and Whiteis, J.2013https://doi.org/10.1130/2013.2494(05)Publication2013Publication dateKelley and others, 2013bSource contributed to the generation of this mapVazzana, M.E., and Ingersoll, R.V.1981https://doi.org/10.1130/GSAB-P2-92-2401Publication1981Publication dateVazzana and Ingersoll, 1981Source contributed to the generation of this mapCashman, P.H., and Sturmer, D.M.2023https://doi.org/10.1130/G50977.1Publication2023Publication dateCashman and Sturmer, 2023Source contributed to the generation of this mapSaleeby, J.B.1992Publication1992Publication dateSaleeby, 1992Source contributed to the generation of this mapRaynolds, R.G., and Johnson, K.R.2003https://doi.org/10.2113/gsrocky.38.1.171Publication2003Publication dateRaynolds and Johnson, 2003Source contributed to the generation of this mapWilliams, H.1936https://doi.org/10.1130/GSAB-47-111Publication1936Publication dateWilliams, 1936Source contributed to the generation of this mapGiegengack, R.F., Jr.1962Publication1962Publication dateGiegengack, 1962Source contributed to the generation of this mapLipman, P.W., and Mehnert, H.H.1975https://doi.org/10.1130/MEM144-p119Publication1975Publication dateLipman and Mehnert, 1975Source contributed to the generation of this mapRoyse, F., Jr.1993https://doi.org/10.1130/0091-7613(1993)021<0133:COTPFE>2.3.CO;2Publication1993Publication dateRoyse, 1993Source contributed to the generation of this mapBjerrum, C.J., and Dorsey, R.J.1995https://doi.org/10.1029/95TC01448Publication1995Publication dateBjerrum and Dorsey, 1995Source contributed to the generation of this mapClemmensen, L.B., Olsen, H., and Blakey, R.C.1989https://doi.org/10.1130/0016-7606(1989)101%3C0759:EMDITL%3E2.3.CO;2Publication1989Publication dateClemmensen and others, 1989Source contributed to the generation of this mapBlakey, R.C., Peterson, F., and Kocurek, G.1988https://doi.org/10.1016/0037-0738(88)90050-4Publication1988Publication dateBlakey and others, 1988Source contributed to the generation of this mapBlakey, R.C.2019https://doi.org/10.1016/B978-0-444-63895-3.00007-3Publication2019Publication dateBlakey, 2019Source contributed to the generation of this mapLupe, R., and Silberling, N.J.1985https://archives.datapages.com/data/circ_pac/1/263_b.htmPublication1985Publication dateLupe and Silberling, 1985Source contributed to the generation of this mapJohns, D.A., and Granata, G.E.1987https://www.jstor.org/stable/40024384Publication1987Publication dateJohns and Granata, 1987Source contributed to the generation of this mapLucas, S.G., and Marzolf, J.E.1993Publication1993Publication dateLucas and Marzolf, 1993Source contributed to the generation of this mapBlakey, R.C., and Gubitosa, R.1983https://www.gbv.de/dms/tib-ub-hannover/016950747.pdfPublication1983Publication dateBlakey and Gubitosa, 1983Source contributed to the generation of this mapSchwartz, T.M., Wyld, S.J., Colgan, J.P., and Prihar, D.W.2024https://doi.org/10.1130/B37454.1Publication2024Publication dateSchwartz and others, 2024Source contributed to the generation of this mapLawton, T.F.1994https://archives.datapages.com/data/rocky_sepm/data/032/032001/pdfs/1.pdfPublication1994Publication dateLawton, 1994Source contributed to the generation of this mapBlakey, R.C.1994https://archives.datapages.com/data/rocky_sepm/data/032/032001/273_rocky_mount320273.htmPublication1994Publication dateBlakey, 1994Source contributed to the generation of this mapAnderson, O.J., and Lucas, S.G.1994https://archives.datapages.com/data/rocky_sepm/data/032/032001/pdfs/299.pdfPublication1994Publication dateAnderson and Lucas, 1994Source contributed to the generation of this mapStewart, J.H., Poole, F.G., Wilson, R.F., Cadigan, R.A., Thordarson, W., and Albee, H.F.1972https://doi.org/10.3133/pp690Publication1972Publication dateStewart and others, 1972Source contributed to the generation of this mapFerguson, H.G., Roberts, R.J., and Muller, S.W.1952https://doi.org/10.3133/gq1174Publication1952Publication dateFerguson and others, 1952Source contributed to the generation of this mapDubiel, R.F.1994https://archives-datapages-com.usgslibrary.idm.oclc.org/data/rocky_sepm/data/032/032001/133_rocky_mount320133.htmPublication1994Publication dateDubiel, 1994Source contributed to the generation of this mapPaull, R.A., and Paull, R.K.1993https://nmdigital.unm.edu/digital/collection/bulletins/id/7240Publication1993Publication datePaull and Paull, 1993Source contributed to the generation of this mapGonzales, D.A.1988https://doi.org/10.3133/ofr88660Publication1988Publication dateGonzales, 1988Source contributed to the generation of this mapCosca, M.A., Thompson, R.A., Lee, J.P., Turner, K.J., Neymark, L.A., and Premo, W.R.2014https://doi.org/10.1130/GES00921.1Publication2014Publication dateCosca and others, 2014Source contributed to the generation of this mapWillett, S.D., McCoy, S.W., and Beeson, H.W.2018https://doi.org/10.1038/s41586-018-0532-1Publication2018Publication dateWillett and others, 2018Source contributed to the generation of this mapLarson, E.E., Ozima, M., and Bradley, W.C.1975https://doi.org/10.1130/MEM144-p155Publication1975Publication dateLarson and others, 1975Source contributed to the generation of this mapTweto, O.1979https://doi.org/10.1029/SP014p0033Publication1979Publication dateTweto, 1979bSource contributed to the generation of this mapOlsen, K.H., Baldridge, W.S., and Callender, J.F.1987https://doi.org/10.1016/0040-1951(87)90083-7Publication1987Publication dateOlsen and others, 1987Source contributed to the generation of this mapMack, G.H., Seager, W.R., Leeder, M.R., Perez-Arlucea, M., and Salyards, S.L.2006https://doi.org/10.1016/j.earscirev.2006.07.002Publication2006Publication dateMack and Others, 2006Source contributed to the generation of this mapYonkee, W.A., and Weil, A.B.2015https://doi.org/10.1016/j.earscirev.2015.08.001Publication2015Publication dateYonkee and Weil, 2015Source contributed to the generation of this mapSloss, L.L.1963https://doi.org/10.1130/0016-7606(1963)74[93:SITCIO]2.0.CO;2Publication1963Publication dateSloss, 1963Source contributed to the generation of this mapEmmons, S.F., Cross, W., and Eldridge, G.H.1894https://doi.org/10.3133/gf9Publication1894Publication dateEmmons and Others, 1894Source contributed to the generation of this mapOrkild, P.P.1955https://doi.org/10.3133/i79Publication1955Publication dateOrkild, 1955cSource contributed to the generation of this mapNeuendorf, K.K.E., Mehl, J.P., Jr., and Jackson, J.A.2005https://www.americangeosciences.org/pubs/glossaryPublication2005Publication dateNeuendorf and others, 2005Source contributed to the generation of this mapSchwartz, T.M., Surpless, K.D., Colgan, J.P., Johnstone, S.A., and Holm-Denoma, C.S.2021https://doi.org/10.1016/j.earscirev.2021.103734Publication2021Publication dateSchwartz and others, 2021bSource contributed to the generation of this mapDeCelles, P.G., Ducea, M.N., Kapp, P., and Zandt, G.2009https://doi.org/10.1038/NGEO469Publication2009Publication dateDeCelles and others, 2009Source contributed to the generation of this mapSweet, D.E., Brotherton, J.L., Chowdhury, N.U.M.K., and Ramsey, C.E.2021https://doi.org/10.1016/j.palaeo.2021.110508Publication2021Publication dateSweet and others, 2021Source contributed to the generation of this mapCashman, P.H., and Sturmer, D.M.2021https://doi.org/10.1016/j.palaeo.2021.110666Publication2021Publication dateCashman and Sturmer, 2021Source contributed to the generation of this mapPoole, F.G., Perry, W.J., Jr., Madrid, R.J., and Amaya-Martinez, R.2005https://doi.org/10.1130/2005.2393(21)Publication2005Publication datePoole and others, 2005Source contributed to the generation of this mapMay, S.R., Beck, M.E., Jr., and Butler, R.F.1989https://doi.org/10.1029/TC008i003p00443Publication1989Publication dateMay and others, 1989Source contributed to the generation of this mapStuart-Alexander, D.E., Shoemaker, E.M., and Moore, H.J.1972https://doi.org/10.3133/i674Publication1972Publication dateStuart-Alexander and others (1972)Source contributed to the generation of this mapDeCelles, P.G., and Currie, B.S.1996https://doi.org/10.1130/0091-7613(1996)024%3C0591:LTSAIT%3E2.3.CO;2Publication1996Publication dateDeCelles and Currie, 1996Source contributed to the generation of this mapEkren, E.B., and Houser, F.N.1959https://doi.org/10.3133/mf224Publication1959Publication dateEkren and Houser, 1959cSource contributed to the generation of this mapThis report2025https://doi.org/10.5066/P1OEFVQ4Publication2025Publication dateThis reportSource contributed to the generation of this mapHouser, F.N., and Ekren, E.B.1959https://doi.org/10.3133/mf216Publication1959Publication dateHouser and Ekren, 1959Source contributed to the generation of this mapKluth, C.F., and Coney, P.J.1981https://doi.org/10.1130/0091-7613(1981)9%3C10:PTOTAR%3E2.0.CO;2Publication1981Publication dateKluth and Coney, 1981Source contributed to the generation of this mapMuller, S.W., Ferguson, H.G., and Roberts, R.J.1951https://doi.org/10.3133/gq7Publication1951Publication dateMuller and others, 1951Source contributed to the generation of this mapBickford, M.E., and Hill, B.M.2007https://doi.org/10.1130/G23174A.1Publication2007Publication dateBickford and Hill, 2007Source contributed to the generation of this mapLipman, P.W., and Bachmann, O.2015https://doi.org/10.1130/GES01091.1Publication2015Publication dateLipman and Bachmann, 2015Source contributed to the generation of this mapRiggs, N.R., Sanchez, T.B., and Reynolds, S.J.2020https://doi.org/10.1130/GES02193.1Publication2020Publication dateRiggs and others, 2020Source contributed to the generation of this mapHenry, C.D., and John, D.A.2013https://doi.org/10.1130/GES00867.1Publication2013Publication dateHenry and John, 2013Source contributed to the generation of this mapEkren, E.B., and Houser, F.N.1959https://doi.org/10.3133/mf217Publication1959Publication dateEkren and Houser, 1959Source contributed to the generation of this mapBest, M.G., Gromme, Sherman., Deino, A.L., Christiansen, E.H., Hart, G.L., and Tingey, D.G.2013https://doi.org/10.1130/GES00945.1Publication2013Publication dateBest and others, 2013Source contributed to the generation of this mapLipman, P.W.2012https://doi.org/10.3133/sim3123Publication2012Publication dateLipman, 2012Source contributed to the generation of this mapHaynes, D.D., Vogel, J.D., and Wyant, D.G.1972https://doi.org/10.3133/i629Publication1972Publication dateHaynes and others, 1972Source contributed to the generation of this mapWoodward, L.A., Gibson, G.G., and McLelland, D.1976https://doi.org/10.58799/GM-39Publication1976Publication dateWoodward and others, 1976Source contributed to the generation of this mapArmstrong, R.L., and Ward, P.1991https://doi.org/10.1029/91JB00412Publication1991Publication dateArmstrong and Ward, 1991Source contributed to the generation of this mapCather, S.M., Heizler, M.T., and Williamson, T.E.2019https://doi.org/10.1130/GES02072.1Publication2019Publication dateCather and others, 2019Source contributed to the generation of this mapSchneider, G.B., Weide, D.L., Mytton, J.W., and Scott, G.R.,1979https://doi.org/10.3133/mf1117Publication1979Publication dateSchneider and others, 1979Source contributed to the generation of this mapEkren, E.B., and Houser, F.N.1959https://doi.org/10.3133/mf221Publication1959Publication dateEkren and Houser, 1959bSource contributed to the generation of this mapBush, A.L., and Bromfield, C.S.1966https://doi.org/10.3133/gq536Publication1966Publication dateBush and Bromfield, 1966Source contributed to the generation of this mapEkren, E.B., and Houser, F.N.1957https://doi.org/10.3133/mf132Publication1957Publication dateEkren and Houser, 1957Source contributed to the generation of this mapHammond, A.P., Carroll, A.R., Parrish, E.C., Smith, M.E., and Lowenstein, T.K.2019https://doi.org/10.1130/G46419.1Publication2019Publication dateHammond and others, 2019Source contributed to the generation of this mapSteven, T.A., and Lipman, P.W.1976https://doi.org/10.3133/pp958Publication1976Publication dateSteven and Lipman, 1976Source contributed to the generation of this mapPratt, W.P, McKnight, E.T., and DeHon, R.A.1969https://doi.org/10.3133/gq797Publication1969Publication datePratt and others, 1969Source contributed to the generation of this mapWoodward, L.A., McLelland, D., Anderson, J.B., and Kaufman, W.H.1972https://doi.org/10.58799/GM-25Publication1972Publication dateWoodward and others, 1972Source contributed to the generation of this mapDickinson, W.R.2006https://doi.org/10.1130/GES00054.1Publication2006Publication dateDickinson, 2006Source contributed to the generation of this mapCondon, S.M.1991https://doi.org/10.3133/i2083Publication1991Publication dateCondon, 1991Source contributed to the generation of this mapMetadata and associated files were created and reviewed.2025Geologic Names Review comments were reconciled.2025Database was submitted to Ian Hillenbrand of the U.S. Geological Survey for Geologic Names Review.2025Peer review comments were reconciled.2025Database was submitted to Matthew Morriss of the Utah Geological Survey and Theresa Schwartz of the U.S. Geological Survey for peer reviews.2024Database was checked internally for consistency and accuracy of attributes and features.2024This 1:100,000 scale geologic mapping in the Colorado Plateau and Southern Rocky Mountains incorporates new interpretive contributions and compilation from 1:24,000 to 1:250,000 scale published geologic map data sources. Much of the geology incorporated from previous mapping is adjusted with Light Detection and Ranging (LiDAR) 1-meter digital elevation models, satellite imagery, and field observations in key localities to improve spatial resolution of the data and eliminate mismatches at source map boundaries. This data set also includes features mapped from airborne magnetic geophysical data. Bedrock geology is continuous across the entire map footprint (to the extent that map units and structures can be appropriately constrained), including areas overlain by surficial deposits. Deposits of unconsolidated surficial materials are not included in this bedrock database, but are instead published in a separate companion surficial database of the same footprint. Bedrock features that project through areas overlain by surficial deposits are indicated accordingly by attributes such as compilation method, identity confidence, existence confidence, and locational confidence. Bedrock includes all igneous, metamorphic, and sedimentary rocks regardless of age, which in this database range from Paleoproterozoic to Quaternary. Geologic provinces organize map units and structures based on time-dependent geologic events of continental to regional scales (e.g., Paleoproterozoic accretionary terranes, early Cordilleran orogenic basins, and Ignimbrite Flare-Up)—rather than geographic or rock type groupings that are typical of traditional geologic maps.2023VectorAlbers Conical Equal Area29.545.5-96.023.00.00.0coordinate pair0.60960.6096metreNorth_American_Datum_1983GRS 19806378137.0298.257222101GeologicMapGeologicMap is a feature dataset equivalent to the map graphic in a paper report: it contains all the geologic content (but not the base map) within the neatline.GeMSDataSourcesNon-spatial table of sources of all spatial features, sources of some attributes of spatial features, and sources of some attributes of non-spatial table entries.GeMSOBJECTIDInternal feature numberESRIUnrepresentable domainOriginatorsAuthor(s) or authoring agency or group.ThisReportList of data source originators can be found in the DataSources data table.PublicationDateYear of publication or year website was accessed.ThisReportPublication dates for individual data sources can be found in the DataSources data table.TitleTitle of publication or web resource.ThisReportPublication Titles for individual data sources can be found in the DataSources data table.SeriesNameName of the publication series. May include periodical name, book series, or website name.ThisReportPublication series names for individual data sources can be found in the DataSources data table.IssueIdentificationIdentifies the issue of the series publication. May include volume or number within a volume.ThisReportPublication issue identification for individual data sources can be found in the DataSources data table.PublicationPlaceThe city and State (or country) where the data source was published. Generally used for books and academic theses or dissertation contributions.ThisReportPublication place for individual data sources can be found in the DataSources data table.PublisherName of publisher. Generally used for books and academic theses or dissertations.ThisReportPublishers for individual data sources can be found in the DataSources data table.SourceScaleDenominatorScale of map if map data is part of data source. Multiple scales can be concatenated using the pipe (|) character, in cases where data sources include map data at multiple scales.ThisReportSource scale denominators for individual data sources can be found in the DataSources data table.OtherCitationDetailsFree-text field to include additional information identifying the data source; for example, pages within a periodical or number of plates.ThisReportOther citation details for individual data sources can be found in the DataSources data table.AccessedDateDate publication was originally accessed.ThisReportUnrepresentable domainSourcePlain-text short description that identifies the data source.GeMSThe source for individual data sources can be found in the DataSources data table.NotesAdditional information specific to a particular feature or table entry.GeMSAdditional information specific to a particular feature or table entry. Can be found in the individual data dictionaries.URLUniversal Resource Locator (URL) or Document Object Identifier (DOI), identifies a document on the World Wide Web.GeMSThe URL for individual data sources can be found in the DataSources data table.NGMDBProdURLUniversal Resource Locator (URL), identifies a product in the National Geologic Map Database.ThisReportThe NGMDBProdURL for individual data sources can be found in the DataSources data table.DataSources_IDPrimary key.GeMSArbitrary string. Values should be unique within this database.DataSourcesListThe DataSourcesList table is a summary of all unique combinations of source foreign-key values (keys and composite keys) used throughout the database; multiple one-to-many relationships are maintained between feature classes (and tables) and the DataSourcesList table based on the xxxSourceID fields.ThisReportOBJECTIDInternal feature numberESRIUnrepresentable domainSourceListList of each data sources used in database. This field is used to relate datasources in feature classes and tables to the DataSources table.ThisReportUnrepresentable domainDataSourcesList_IDPrimary key.GeMSArbitrary string. Values should be unique within this database.GlossaryNon-spatial table that, for certain fields (including all Type fields, Confidence fields, and GeneralLithology), lists the terms that populate these fields, term definitions, and sources for definitions.GeMSOBJECTIDInternal feature numberESRIUnrepresentable domainTermPlain-language word for a concept. Values must be unique within database as a whole.GeMSFeature terms and definitions can be found in the Glossary data table.DefinitionPlain-language definition.GeMSDefinitions can be found in associated data table.DefinitionSourceIDSource of definition; foreign key to DataSources.GeMSThe list of definition sources can be found in the DataSources data table.Glossary_IDPrimary key.GeMSArbitrary string. Values should be unique within this database.ContributorIDIdentifies individual contributors to the map database. Foreign key to the Contributors tableThisReportList of contributors can be found in the Contributors data table.ContributorOrgIDIdentifies individual contributors to the map database. Foreign key to the Contributors tableThisReportList of contributor organizations can be found in the Contributors data table.DatabaseVersionIDForeign key to the DatabaseReleaseVersions table. Foreign key in this field is applied to the entire database to reflect the most current release of the database.ThisReportList of database versions can be found in the DatabaseReleaseVersions data table.LastUpdateVersionIDForeign key to the DatabaseReleaseVersions table. Foreign key in this field refers to the database version in which feature or table record was last modified.ThisReportList of database versions can be found in the DatabaseReleaseVersions data table.MethodsNon-spatial table of methods used during map compilation.ThisReportOBJECTIDInternal feature numberESRIUnrepresentable domainMethodShort, easily understood statement of method used during compilation.ThisReportList of methods can be found in the Methods data table.NotesAdditional information specific to a particular feature or table entry.GeMSAdditional information specific to a particular feature or table entry. Can be found in the individual data dictionaries.Methods_IDPrimary key.GeMSArbitrary string. Values should be unique within this database.DatabaseVersionIDForeign key to the DatabaseReleaseVersions table. Foreign key in this field is applied to the entire database to reflect the most current release of the database.ThisReportList of database versions can be found in the DatabaseReleaseVersions data table.LastUpdateVersionIDForeign key to the DatabaseReleaseVersions table. Foreign key in this field refers to the database version in which feature or table record was last modified.ThisReportList of database versions can be found in the DatabaseReleaseVersions data table.TrackChangeIdentifies type of change made to a feature in the most recent version. Attributes include New features or records were added, and Attribution changes were made, for spatial features attributes also include Geometry changes were made.ThisReportAttributes include New features or records were added, and Attribution changes were made, for spatial features attributes also include Geometry changes were made.TimeScaleNon-spatial table used to define the temporal framework of the database.ThisReportOBJECTIDInternal feature numberESRIUnrepresentable domainNameName of entity. Identifies entity within its hierarchical context.GeMSList of names can be found in respective data table.FullNameName of entity including identification of containing higher rank entity or entities if necessary.GeMSList of full names can be found in respective data table.RankThe ranks of Geologic Time shows the major chronostratigraphic (position) and geochronologic (time) units; that is, eonothem/eon to series/epoch divisions.ThisReportUnrepresentable domainNumericAgeMinMinimum numerical age determined for the minimum age unit boundary.ThisReportUnrepresentable domainNumericAgeMin_ErrorAnalytical error reported for the minimum age unit boundary.ThisReportValues of NumericAgeMin_Error can be found in the TimeTable data table.NumericAgeMaxMaximum numerical age determined for the maximum age unit boundary.ThisReportUnrepresentable domainNumericAgeMax_ErrorAnalytical error reported for the maximum age unit boundary.ThisReportValues of NumericAgeMax_Error can be found in the TimeTable data table.NumericAgeUnitsUnit of measure for numerical ages and errors; for example, “Ma” or “ka.”ThisReportArbitrary stingNotesAdditional information specific to a particular feature or table entry.GeMSAdditional information specific to a particular feature or table entry. Can be found in the individual data dictionaries.AgeLabelCharacter(s) used to represent ages in map-unit labels throughout the database; for example, K (for Cretaceous) in the UnitCode field.ThisReportUnrepresentable domainDataSourceIDSource of data; foreign key to table DataSources.GeMSList of data sources can be found in the DataSources data table.HierarchyKeyString that records hierarchical structure. Has form nn-nn-nn, nnn-nnn, or similar. Numeric, left-padded with zeros, dash-delimited. Each HierarchyKey fragment of each row MUST be the same length to allow text-based sorting of table entries.GeMSHierarchy values are unique to each map.TimeScale_IDPrimary key.GeMSArbitrary string. Values should be unique within this database.ContributorIDIdentifies individual contributors to the map database. Foreign key to the Contributors tableThisReportList of contributors can be found in the Contributors data table.ContributorOrgIDIdentifies individual contributors to the map database. Foreign key to the Contributors tableThisReportList of contributor organizations can be found in the Contributors data table.DatabaseVersionIDForeign key to the DatabaseReleaseVersions table. Foreign key in this field is applied to the entire database to reflect the most current release of the database.ThisReportList of database versions can be found in the DatabaseReleaseVersions data table.LastUpdateVersionIDForeign key to the DatabaseReleaseVersions table. Foreign key in this field refers to the database version in which feature or table record was last modified.ThisReportList of database versions can be found in the DatabaseReleaseVersions data table.TrackChangeIdentifies type of change made to a feature in the most recent version. Attributes include New features or records were added, and Attribution changes were made, for spatial features attributes also include Geometry changes were made.ThisReportAttributes include New features or records were added, and Attribution changes were made, for spatial features attributes also include Geometry changes were made.ContributorsNon-spatial table were individuals and organizations that contributed to the creation of the map are recorded.ThisReportOBJECTIDInternal feature numberESRIUnrepresentable domainNameName of entity. Identifies entity within its hierarchical context.GeMSList of names can be found in respective data table.RegistryIdentifierRegistry identifier for the individual or organization.ThisReportUnrepresentable domainRegistryTypeType of registry identifier for the individual or organization.ThisReportUnrepresentable domainRegistryURLUniversal Resource Locator (URL) or Document Object Identifier (DOI), identifies a document on the World Wide Web.GeMSThe URL for individual data sources can be found in the DataSources data table.Contributors_IDPrimary key.GeMSArbitrary string. Values should be unique within this database.DatabaseReleaseVersionsNon-spatial table used to track versions and version changes of the database.ThisReportOBJECTIDInternal feature numberESRIUnrepresentable domainVersionNumberVersion number of database release.ThisReportUnrepresentable domainReleaseDescriptionDescription of changes to the database from previous version. May indicate new areas that were included in the database and may highlight areas of previously released mapping that have been changed.ThisReportUnrepresentable domainReleaseDateVersion release date.ThisReportUnrepresentable domainReviewDateDate technical review of database was completed.ThisReportUnrepresentable domainReviewerIDIdentifies reviewer or reviewers that conducted the technical review of the database.ThisReportUnrepresentable domainVersionURLURL where database can be downloaded.ThisReportUnrepresentable domainDatabaseReleaseVersions_IDPrimary key.GeMSArbitrary string. Values should be unique within this database.RepurposedSymbolsNon-spatial table that identifies symbols from the FGDC Digital Cartographic Standard for Geologic Map Symbolization (FGDC-STD-013-2006) that are "repurposed" for this map.GeMSOBJECTIDInternal feature numberESRIUnrepresentable domainFgdcIdentifierIdentifier for symbol from FGDC Digital Cartographic Standard for Geologic Map Symbolization.GeMSUnrepresentable domainOldExplanationExplanatory text from FGDC standard for meaning of symbolGeMSUnrepresentable domainNewExplanationExplanation of usage of symbol in this map portrayalGeMSUnrepresentable domainRepurposedSymbols_IDPrimary key.GeMSArbitrary string. Values should be unique within this database.DescriptionOfMapUnitsNon-spatial table that captures content of the Description of Map Units (or equivalent List of Map Units and associated pamphlet text) included in a traditional paper geologic map. Has an internal hierarchy expressed by attribute HierarchyKeyGeMSOBJECTIDInternal feature numberESRIUnrepresentable domainHierarchyKeyString that records hierarchical structure. Has form nn-nn-nn, nnn-nnn, or similar. Numeric, left-padded with zeros, dash-delimited. Each HierarchyKey fragment of each row MUST be the same length to allow text-based sorting of table entries.GeMSHierarchy values are unique to each map.MapUnitPrimary keyThisReportList of map units can be found in the DescriptionofMapUnits data table.UnitCodeEasily readable, meaningful plain-text identifier (no special characters) for the map-unit label. Null values permitted for map units that do not correspond to mapped features. For example, a group that is only mapped as its constituent formations.ThisReportList of unit codes can be found in the DescriptionofMapUnits data table.LabelPlain-text equivalent of the desired annotation for a feature: for example "14 Ma", or "^c" which (when used with the FGDC GeoAge font) results in the geologic map-unit label TRc (with TR run together to make the Triassic symbol).GeMSList of labels can be found in the DescriptionofMapUnits data table.NameName of entity. Identifies entity within its hierarchical context.GeMSList of names can be found in respective data table.FullNameName of entity including identification of containing higher rank entity or entities if necessary.GeMSList of full names can be found in respective data table.AgeAge of entity as shown in Description of Map Units. Examples of values are "late Holocene", "Pliocene and Miocene", "Lower Cretaceous".GeMSMore information regarding chronostratigraphic terms used in this map can be found in the TimeTable data table.SymbolReference to a point marker, line symbol, or area-fill symbol that is used on the map graphic to denote the feature: perhaps a star for a K-Ar age locality, or a heavy black line for a fault.GeMSSymbol types and definitions can be found in the Glossary data table.DepositGeneralGeneral characterization of dominant rock lithology or predominant process-oriented type of surficial deposit.ThisReportArbitrary string.MaterialRock, materials, or composition of materials that compose the map unit.ThisReportList of material types can be found in the corresponding data table.GeneticTypeThe process, environment, or protolith associated with deposition or emplacement of the map unit.ThisReportList of genetic types can be found in the corresponding data table.AgeMinMinimum age of the map unit. Can include chronostratigraphic (for example, Upper Cretaceous), geochronologic (for example, Late Cretaceous), or stage terms.ThisReportMore information regarding chronostratigraphic terms used in this map can be found in the TimeTable data table.AgeMaxMaximum age of the map unit. Can include chronostratigraphic (for example, Upper Cretaceous), geochronologic (for example, Late Cretaceous), or stage terms.ThisReportMore information regarding chronostratigraphic terms used in this map can be found in the TimeTable data table.NumAgeSummaryNarrative summary of the age or age range of a map unit based on geochronologic analysis or other quantifiable means such as paleomagnetism or fossil assemblage.ThisReportUnrepresentable domainNumAgeMethodAnalytical method(s) by which age(s) are determined.ThisReportUnrepresentable domainNumAgeCommentFree-text field for additional information about the reported age. Could include information about the sample, material analyzed, or other qualifying information.ThisReportUnrepresentable domainNumAgeSourceIDIdentifies the source of the age data referred to in NumAgeSummary. Foreign key to the DataSources_IDfield in the DataSources table.ThisReportUnrepresentable domainSourceVolcanoFree-text field for additional information about the reported age. Could include information about the sample, material analyzed, or other qualifying information.ThisReportUnrepresentable domainEruptiveCycleTimingFor caldera related deposits, selection indicates if the deposit precedes, postdates or is concurrent with the caldera formation.ThisReportUnrepresentable domainDescriptionFree-format text description of entity. Commonly structured according to one or more accepted traditions (e.g., lithology, thickness, color, weathering and outcrop characteristics, distinguishing features, genesis, age constraints) and terse.GeMSDescriptions can be found in the corresponding data table.GeoMaterialRock, materials, or composition of materials that compose the map unit.ThisReportList of material types can be found in the corresponding data table.GeoMaterialConfidenceDescribes appropriateness of GeoMaterial term for describing the map unit.GeMScertainMISSINGMISSINGhighThe term and definition adequately characterize the overall lithologic nature of rocks and sediments in the map unit. Regarding the subjective term "adequately characterize", we refer to context and objectives of this classification as described in the GeMS documentation.GeMS documentationquestionableMISSINGMISSINGParagraphStyleToken that identifies formatting of paragraph(s) within traditional Description of Map Units that correspond to this table entry.GeMSDMU Unit 2Second order map unit.USGS, 2006DMU Unit 1First order map unit.USGS, 2006DMU Unit 3Third order map unit.USGS, 2006AreaFillPatternDescriptionText description (e.g., "random small red dashes") provided as a convenience for users who must recreate symbolization.GeMSField is not used for this publication.AreaFillRGB{Red, Green, Blue} tuples that specify the suggested color (e.g., "255,255,255", "124,005,255") of area fill for symbolizing MapUnit. Each color value is an integer between 0 and 255, values are zero-padded to a length of 3 digits, and values are separated by commas with no space: NNN,NNN,NNN.GeMSUnrepresentable domainStratigraphicBaseContactCharacterizes the nature of the basal contact of sedimentary map units. Attributes include conformable, unconformable, variable, and unspecified.ThisReportUnrepresentable domainDescriptionSourceIDSource of description; foreign key to table Datasources.GeMSList of data sources can be found in the DataSources data table.GeologicProvinceIDPrimary key for geologic province table.ThisReportList of provinces can be found in the GeologicProvinces data table.DescriptionOfMapUnits_IDPrimary key.GeMSArbitrary string. Values should be unique within this database.TrackChangeIdentifies type of change made to a feature in the most recent version. Attributes include New features or records were added, and Attribution changes were made, for spatial features attributes also include Geometry changes were made.ThisReportAttributes include New features or records were added, and Attribution changes were made, for spatial features attributes also include Geometry changes were made.DatabaseVersionIDForeign key to the DatabaseReleaseVersions table. Foreign key in this field is applied to the entire database to reflect the most current release of the database.ThisReportList of database versions can be found in the DatabaseReleaseVersions data table.LastUpdateVersionIDForeign key to the DatabaseReleaseVersions table. Foreign key in this field refers to the database version in which feature or table record was last modified.ThisReportList of database versions can be found in the DatabaseReleaseVersions data table.ConstituentUnitsIDForeign key field identifying constituent map units of a combined map unit when constituent map units exist as unique rows in the DescriptionOfMapUnits non-spatial table. Foreign key references the DescriptionOfMapUnits_ID as the primary key because GeMS requires the MapUnit field to be Null for map units that don’t appear in the map as individual units.ThisReportList of map units can be found in the DescriptionofMapUnits data table.GeologicProvincesNon-spatial table of geologic provinces. Map units in the ThisReport extension to GeMS are organized on the basis of their genetic relation to definable geologic events, processes, or settings, referred to as geologic provinces.ThisReportOBJECTIDInternal feature numberESRIUnrepresentable domainNameName of entity. Identifies entity within its hierarchical context.GeMSList of names can be found in respective data table.FullNameName of entity including identification of containing higher rank entity or entities if necessary.GeMSList of full names can be found in respective data table.ProvinceRankThe ranks of Geologic Time shows the major chronostratigraphic (position) and geochronologic (time) units; that is, eonothem/eon to series/epoch divisions.ThisReportUnrepresentable domainProvinceTypeIndicates either the prominent depositional, magmatic, or tectonic setting or the dominant process by which map units within the province are derived.ThisReportList of province types can be found in the GeologicProvinces data table.DepositGeneralGeneral characterization of dominant rock lithology or predominant process-oriented type of surficial deposit.ThisReportArbitrary string.AgeAge of entity as shown in Description of Map Units. Examples of values are "late Holocene", "Pliocene and Miocene", "Lower Cretaceous".GeMSMore information regarding chronostratigraphic terms used in this map can be found in the TimeTable data table.SymbolReference to a point marker, line symbol, or area-fill symbol that is used on the map graphic to denote the feature: perhaps a star for a K-Ar age locality, or a heavy black line for a fault.GeMSSymbol types and definitions can be found in the Glossary data table.DescriptionFree-format text description of entity. Commonly structured according to one or more accepted traditions (e.g., lithology, thickness, color, weathering and outcrop characteristics, distinguishing features, genesis, age constraints) and terse.GeMSDescriptions can be found in the corresponding data table.HierarchyKeyString that records hierarchical structure. Has form nn-nn-nn, nnn-nnn, or similar. Numeric, left-padded with zeros, dash-delimited. Each HierarchyKey fragment of each row MUST be the same length to allow text-based sorting of table entries.GeMSHierarchy values are unique to each map.DescriptionSourceIDSource of description; foreign key to table Datasources.GeMSList of data sources can be found in the DataSources data table.GeologicProvinces_IDPrimary key.GeMSArbitrary string. Values should be unique within this database.ContributorIDIdentifies individual contributors to the map database. Foreign key to the Contributors tableThisReportList of contributors can be found in the Contributors data table.ContributorOrgIDIdentifies individual contributors to the map database. Foreign key to the Contributors tableThisReportList of contributor organizations can be found in the Contributors data table.TrackChangeIdentifies type of change made to a feature in the most recent version. Attributes include New features or records were added, and Attribution changes were made, for spatial features attributes also include Geometry changes were made.ThisReportAttributes include New features or records were added, and Attribution changes were made, for spatial features attributes also include Geometry changes were made.DatabaseVersionIDForeign key to the DatabaseReleaseVersions table. Foreign key in this field is applied to the entire database to reflect the most current release of the database.ThisReportList of database versions can be found in the DatabaseReleaseVersions data table.LastUpdateVersionIDForeign key to the DatabaseReleaseVersions table. Foreign key in this field refers to the database version in which feature or table record was last modified.ThisReportList of database versions can be found in the DatabaseReleaseVersions data table.ConstituentProvincesIDForeign key field identifying constituent geologic provinces of a combined province. Foreign key field references the GeologicProvinces_ID field in the GeologicProvinces non-spatial table.ThisReportList of geologic provinces can be found in the GeologicProvinces data table.GeoMaterialDictNon-spatial table that provides values of GeoMaterial, placed in a hierarchy, and their definitions. For further information, see Appendix A in GeMS documentation, available at http://ngmdb.usgs.gov/Info/standards/GeMS.GeMSOBJECTIDInternal feature numberESRIUnrepresentable domainHierarchyKeyString that records hierarchical structure. Has form nn-nn-nn, nnn-nnn, or similar. Numeric, left-padded with zeros, dash-delimited. Each HierarchyKey fragment of each row MUST be the same length to allow text-based sorting of table entries.GeMSHierarchy values are unique to each map.GeoMaterialRock, materials, or composition of materials that compose the map unit.ThisReportList of material types can be found in the corresponding data table.IndentedNameName with addition of leading spaces to help show rank within a hierarchical list.GeMSIndented names can be found in the GeoMaterialsDict data table.DefinitionPlain-language definition.GeMSDefinitions can be found in associated data table.ContactsAndFaultsContacts between map units, faults that bound map units, and associated dangling faults. Includes concealed faults and contacts, waterlines, snowfield and glacier boundaries, and map boundary. In the original file geodatabase, this dataset is found within the GeologicMap feature dataset.GeMSOBJECTIDInternal feature numberESRIUnrepresentable domainShapeInternal geometry objectESRIUnrepresentable domainTypeClassifier that specifies what kind of geologic feature is represented by a database element: that a certain line within feature class ContactsAndFaults is a contact, or thrust fault, or water boundary; or that a point in GeochronPoints represents a K-Ar date.GeMSFeature types and definitions can be found in the Glossary data table.IsConcealedFlag for contacts and faults covered by overlying map unit.GeMSn: the line is not concealed by overlying map unit, y: the line is concealed by overlying map unitLocationConfidenceMetersEstimated half-width in meters of positional uncertainty envelope; position is relative to other features in database.GeMSPositive real number. Value of -9, -99, or -9999 indicates value is unknown.ExistenceConfidenceConfidence that feature exists.GeMScertainIdentity of a feature can be determined using relevant observations and scientific judgment; therefore, one can be reasonably confident in the credibility of this interpretation.USGS, 2006unspecifiedUsed when confidence values are not specified in source data.This reportquestionableIdentity of a feature cannot be determined using relevant observations and scientific judgment; therefore, one cannot be reasonably confident in the credibility of this interpretation. For example, IdentityConfidence = questionable is appropriate when a geologist reasons "I can see some kind of planar feature that separates map units in this outcrop, but I cannot be certain if it is a contact or a fault."USGS, 2006IdentityConfidenceConfidence that feature is correctly identified.GeMScertainIdentity of a feature can be determined using relevant observations and scientific judgment; therefore, one can be reasonably confident in the credibility of this interpretation.USGS, 2006unspecifiedUsed when confidence values are not specified in source data.This reportquestionableIdentity of a feature cannot be determined using relevant observations and scientific judgment; therefore, one cannot be reasonably confident in the credibility of this interpretation. For example, IdentityConfidence = questionable is appropriate when a geologist reasons "I can see some kind of planar feature that separates map units in this outcrop, but I cannot be certain if it is a contact or a fault."USGS, 2006LabelPlain-text equivalent of the desired annotation for a feature: for example "14 Ma", or "^c" which (when used with the FGDC GeoAge font) results in the geologic map-unit label TRc (with TR run together to make the Triassic symbol).GeMSList of labels can be found in the DescriptionofMapUnits data table.MethodIDForeign key to Methods table.ThisReportList of Method id's can be found in the Methods data table.SymbolReference to a point marker, line symbol, or area-fill symbol that is used on the map graphic to denote the feature: perhaps a star for a K-Ar age locality, or a heavy black line for a fault.GeMSSymbol types and definitions can be found in the Glossary data table.DataSourceIDSource of data; foreign key to table DataSources.GeMSList of data sources can be found in the DataSources data table.NotesAdditional information specific to a particular feature or table entry.GeMSAdditional information specific to a particular feature or table entry. Can be found in the individual data dictionaries.RelativeVerticalDisplacementFor faults with a dip-slip component of displacement, describes which side of the fault is displaced up relative to the other. Attribute as one of 8 cardinal directions that most closely corresponds to the upthrown side of the fault.ThisReportOne of 8 cardinal directions.ContactsAndFaults_IDPrimary key.GeMSArbitrary string. Values should be unique within this database.ContributorIDIdentifies individual contributors to the map database. Foreign key to the Contributors tableThisReportList of contributors can be found in the Contributors data table.ContributorOrgIDIdentifies individual contributors to the map database. Foreign key to the Contributors tableThisReportList of contributor organizations can be found in the Contributors data table.TrackChangeIdentifies type of change made to a feature in the most recent version. Attributes include New features or records were added, and Attribution changes were made, for spatial features attributes also include Geometry changes were made.ThisReportAttributes include New features or records were added, and Attribution changes were made, for spatial features attributes also include Geometry changes were made.DatabaseVersionIDForeign key to the DatabaseReleaseVersions table. Foreign key in this field is applied to the entire database to reflect the most current release of the database.ThisReportList of database versions can be found in the DatabaseReleaseVersions data table.LastUpdateVersionIDForeign key to the DatabaseReleaseVersions table. Foreign key in this field refers to the database version in which feature or table record was last modified.ThisReportList of database versions can be found in the DatabaseReleaseVersions data table.UnitCodeEasily readable, meaningful plain-text identifier (no special characters) for the map-unit label. Null values permitted for map units that do not correspond to mapped features. For example, a group that is only mapped as its constituent formations.ThisReportList of unit codes can be found in the DescriptionofMapUnits data table.FullNameName of entity including identification of containing higher rank entity or entities if necessary.GeMSList of full names can be found in respective data table.MapUnitPrimary keyThisReportList of map units can be found in the DescriptionofMapUnits data table.LocalStratNameName as used on original sources cited in the DataSourceID fieldThisReportFree Text.OrigMapUnitCharacter identifier that represents a map-unit label as used on original sources cited in the DataSourceID fieldThisReportArbitrary stingShape_LengthInternal feature length, doubleESRIUnrepresentable domainMapUnitPolysPolygons that record distribution of map units (including water, snowfields, glaciers, and unmapped area) on the particular map horizon. In the original file geodatabase, this dataset is found within the GeologicMap feature dataset.GeMSOBJECTIDInternal feature numberESRIUnrepresentable domainShapeInternal geometry objectESRIUnrepresentable domainMapUnitPrimary keyThisReportList of map units can be found in the DescriptionofMapUnits data table.UnitCodeEasily readable, meaningful plain-text identifier (no special characters) for the map-unit label. Null values permitted for map units that do not correspond to mapped features. For example, a group that is only mapped as its constituent formations.ThisReportList of unit codes can be found in the DescriptionofMapUnits data table.FullNameName of entity including identification of containing higher rank entity or entities if necessary.GeMSList of full names can be found in respective data table.IdentityConfidenceConfidence that feature is correctly identified.GeMScertainIdentity of a feature can be determined using relevant observations and scientific judgment; therefore, one can be reasonably confident in the credibility of this interpretation.USGS, 2006questionableIdentity of a feature cannot be determined using relevant observations and scientific judgment; therefore, one cannot be reasonably confident in the credibility of this interpretation. For example, IdentityConfidence = questionable is appropriate when a geologist reasons "I can see some kind of planar feature that separates map units in this outcrop, but I cannot be certain if it is a contact or a fault."USGS, 2006LabelPlain-text equivalent of the desired annotation for a feature: for example "14 Ma", or "^c" which (when used with the FGDC GeoAge font) results in the geologic map-unit label TRc (with TR run together to make the Triassic symbol).GeMSList of labels can be found in the DescriptionofMapUnits data table.SymbolReference to a point marker, line symbol, or area-fill symbol that is used on the map graphic to denote the feature: perhaps a star for a K-Ar age locality, or a heavy black line for a fault.GeMSSymbol types and definitions can be found in the Glossary data table.DataSourceIDSource of data; foreign key to table DataSources.GeMSList of data sources can be found in the DataSources data table.NotesAdditional information specific to a particular feature or table entry.GeMSAdditional information specific to a particular feature or table entry. Can be found in the individual data dictionaries.LocalStratNameName as used on original sources cited in the DataSourceID fieldThisReportFree Text.OrigMapUnitCharacter identifier that represents a map-unit label as used on original sources cited in the DataSourceID fieldThisReportArbitrary stingMethodIDForeign key to Methods table.ThisReportList of Method id's can be found in the Methods data table.MapUnitPolys_IDPrimary key.GeMSArbitrary string. Values should be unique within this database.ContributorIDIdentifies individual contributors to the map database. Foreign key to the Contributors tableThisReportList of contributors can be found in the Contributors data table.ContributorOrgIDIdentifies individual contributors to the map database. Foreign key to the Contributors tableThisReportList of contributor organizations can be found in the Contributors data table.TrackChangeIdentifies type of change made to a feature in the most recent version. Attributes include New features or records were added, and Attribution changes were made, for spatial features attributes also include Geometry changes were made.ThisReportAttributes include New features or records were added, and Attribution changes were made, for spatial features attributes also include Geometry changes were made.DatabaseVersionIDForeign key to the DatabaseReleaseVersions table. Foreign key in this field is applied to the entire database to reflect the most current release of the database.ThisReportList of database versions can be found in the DatabaseReleaseVersions data table.LastUpdateVersionIDForeign key to the DatabaseReleaseVersions table. Foreign key in this field refers to the database version in which feature or table record was last modified.ThisReportList of database versions can be found in the DatabaseReleaseVersions data table.Shape_LengthInternal feature length, doubleESRIUnrepresentable domainShape_AreaInternal feature area, doubleESRIUnrepresentable domainMapUnitLabelsFeature class showing point representations of map unit polygons.ThisReportOBJECTIDInternal feature numberESRIUnrepresentable domainShapeInternal geometry objectESRIUnrepresentable domainMapUnitPrimary keyThisReportList of map units can be found in the DescriptionofMapUnits data table.UnitCodeEasily readable, meaningful plain-text identifier (no special characters) for the map-unit label. Null values permitted for map units that do not correspond to mapped features. For example, a group that is only mapped as its constituent formations.ThisReportList of unit codes can be found in the DescriptionofMapUnits data table.FullNameName of entity including identification of containing higher rank entity or entities if necessary.GeMSList of full names can be found in respective data table.IdentityConfidenceConfidence that feature is correctly identified.GeMScertainIdentity of a feature can be determined using relevant observations and scientific judgment; therefore, one can be reasonably confident in the credibility of this interpretation.USGS, 2006questionableIdentity of a feature cannot be determined using relevant observations and scientific judgment; therefore, one cannot be reasonably confident in the credibility of this interpretation. For example, IdentityConfidence = questionable is appropriate when a geologist reasons "I can see some kind of planar feature that separates map units in this outcrop, but I cannot be certain if it is a contact or a fault."USGS, 2006LabelPlain-text equivalent of the desired annotation for a feature: for example "14 Ma", or "^c" which (when used with the FGDC GeoAge font) results in the geologic map-unit label TRc (with TR run together to make the Triassic symbol).GeMSList of labels can be found in the DescriptionofMapUnits data table.SymbolReference to a point marker, line symbol, or area-fill symbol that is used on the map graphic to denote the feature: perhaps a star for a K-Ar age locality, or a heavy black line for a fault.GeMSSymbol types and definitions can be found in the Glossary data table.DataSourceIDSource of data; foreign key to table DataSources.GeMSList of data sources can be found in the DataSources data table.NotesAdditional information specific to a particular feature or table entry.GeMSAdditional information specific to a particular feature or table entry. Can be found in the individual data dictionaries.LocalStratNameName as used on original sources cited in the DataSourceID fieldThisReportFree Text.OrigMapUnitCharacter identifier that represents a map-unit label as used on original sources cited in the DataSourceID fieldThisReportArbitrary stingMethodIDForeign key to Methods table.ThisReportList of Method id's can be found in the Methods data table.MapUnitLabels_IDPrimary key.GeMSArbitrary string. Values should be unique within this database.ContributorIDIdentifies individual contributors to the map database. Foreign key to the Contributors tableThisReportList of contributors can be found in the Contributors data table.ContributorOrgIDIdentifies individual contributors to the map database. Foreign key to the Contributors tableThisReportList of contributor organizations can be found in the Contributors data table.TrackChangeIdentifies type of change made to a feature in the most recent version. Attributes include New features or records were added, and Attribution changes were made, for spatial features attributes also include Geometry changes were made.ThisReportAttributes include New features or records were added, and Attribution changes were made, for spatial features attributes also include Geometry changes were made.DatabaseVersionIDForeign key to the DatabaseReleaseVersions table. Foreign key in this field is applied to the entire database to reflect the most current release of the database.ThisReportList of database versions can be found in the DatabaseReleaseVersions data table.LastUpdateVersionIDForeign key to the DatabaseReleaseVersions table. Foreign key in this field refers to the database version in which feature or table record was last modified.ThisReportList of database versions can be found in the DatabaseReleaseVersions data table.FoldAxisLinesLines that represent fold axis traces. All have these properties: (A) They do not participate in map-unit topology. (B) They correspond to features that exist within the Earth and may be concealed beneath younger, covering, material. (C) They are located with an accuracy that likely can be estimated.ThisReportOBJECTIDInternal feature numberESRIUnrepresentable domainShapeInternal geometry objectESRIUnrepresentable domainTypeClassifier that specifies what kind of geologic feature is represented by a database element: that a certain line within feature class ContactsAndFaults is a contact, or thrust fault, or water boundary; or that a point in GeochronPoints represents a K-Ar date.GeMSFeature types and definitions can be found in the Glossary data table.IsConcealedFlag for contacts and faults covered by overlying map unit.GeMSn: the line is not concealed by overlying map unit, y: the line is concealed by overlying map unitLocationConfidenceMetersEstimated half-width in meters of positional uncertainty envelope; position is relative to other features in database.GeMSPositive real number. Value of -9, -99, or -9999 indicates value is unknown.ExistenceConfidenceConfidence that feature exists.GeMScertainIdentity of a feature can be determined using relevant observations and scientific judgment; therefore, one can be reasonably confident in the credibility of this interpretation.USGS, 2006IdentityConfidenceConfidence that feature is correctly identified.GeMScertainIdentity of a feature can be determined using relevant observations and scientific judgment; therefore, one can be reasonably confident in the credibility of this interpretation.USGS, 2006SymbolReference to a point marker, line symbol, or area-fill symbol that is used on the map graphic to denote the feature: perhaps a star for a K-Ar age locality, or a heavy black line for a fault.GeMSSymbol types and definitions can be found in the Glossary data table.LabelPlain-text equivalent of the desired annotation for a feature: for example "14 Ma", or "^c" which (when used with the FGDC GeoAge font) results in the geologic map-unit label TRc (with TR run together to make the Triassic symbol).GeMSList of labels can be found in the DescriptionofMapUnits data table.MethodIDForeign key to Methods table.ThisReportList of Method id's can be found in the Methods data table.DataSourceIDSource of data; foreign key to table DataSources.GeMSList of data sources can be found in the DataSources data table.NotesAdditional information specific to a particular feature or table entry.GeMSAdditional information specific to a particular feature or table entry. Can be found in the individual data dictionaries.AxialSurfaceDipDirectionDescribes the dip direction of the fold axial surface. Attribute as one of 8 cardinal directions, “vertical”, or “undetermined”. Note that for monoclines, the axial surface dip direction is opposite the dip direction of layering.ThisReportone of 8 cardinal directions, “vertical”, or “undetermined”.PlungeDirectionDescribes the plunge direction(s) of the fold hinge line. For folds that plunge in a single direction, attribute as one of 8 cardinal directions. For doubly plunging folds, attribute in the following format: [plunge direction of one end of the fold axial trace]-[plunge direction of the opposing end of the fold axial trace] (e.g., NW-SE; W-S). By convention, if a northerly plunge direction exists, list the northerly direction first; if no northerly direction exists, list the westerly direction first.ThisReportArbitrary string.FoldAxisLines_IDPrimary key.GeMSArbitrary string. Values should be unique within this database.ContributorIDIdentifies individual contributors to the map database. Foreign key to the Contributors tableThisReportList of contributors can be found in the Contributors data table.ContributorOrgIDIdentifies individual contributors to the map database. Foreign key to the Contributors tableThisReportList of contributor organizations can be found in the Contributors data table.TrackChangeIdentifies type of change made to a feature in the most recent version. Attributes include New features or records were added, and Attribution changes were made, for spatial features attributes also include Geometry changes were made.ThisReportAttributes include New features or records were added, and Attribution changes were made, for spatial features attributes also include Geometry changes were made.DatabaseVersionIDForeign key to the DatabaseReleaseVersions table. Foreign key in this field is applied to the entire database to reflect the most current release of the database.ThisReportList of database versions can be found in the DatabaseReleaseVersions data table.LastUpdateVersionIDForeign key to the DatabaseReleaseVersions table. Foreign key in this field refers to the database version in which feature or table record was last modified.ThisReportList of database versions can be found in the DatabaseReleaseVersions data table.Shape_LengthInternal feature length, doubleESRIUnrepresentable domainGeologicProvincePolysA derivative polygon feature class which displays the spatial extent of the geologic provinces in this map area.ThisReportOBJECTIDInternal feature numberESRIUnrepresentable domainShapeInternal geometry objectESRIUnrepresentable domainFullName_GeologicProvinceName of major province, values are unique within the database.ThisReportList of province names can be found in the GeologicProvinces data table.Name_GeologicProvince1Name of Geologic Province 1ThisReportUnrepresentable domainName_GeologicProvince2Name of Geologic Province 2ThisReportUnrepresentable domainName_GeologicProvince3Name of Geologic Province 3 (if applicable)ThisReportUnrepresentable domainGeologicProvince1IDForeign key field to the GeologicProvinces table for Geologic Province 1.ThisReportUnrepresentable domainGeologicProvince2IDForeign key field to the GeologicProvinces table for Geologic Province 2ThisReportUnrepresentable domainGeologicProvince3IDForeign key field to the GeologicProvinces table for Geologic Province 3ThisReportUnrepresentable domainSymbol_GeologicProvince1Reference to a point marker, line symbol, or area-fill symbol that is used on the map graphic to denote the feature: perhaps a star for a K-Ar age locality, or a heavy black line for a fault.GeMSArbitrary stingSymbol_GeologicProvince2Reference to a point marker, line symbol, or area-fill symbol that is used on the map graphic to denote the feature: perhaps a star for a K-Ar age locality, or a heavy black line for a fault.GeMSArbitrary stingSymbol_GeologicProvince3Reference to a point marker, line symbol, or area-fill symbol that is used on the map graphic to denote the feature: perhaps a star for a K-Ar age locality, or a heavy black line for a fault.GeMSArbitrary stingGeologicProvincePolys_IDPrimary key.GeMSArbitrary string. Values should be unique within this database.DataSourceIDSource of data; foreign key to table DataSources.GeMSList of data sources can be found in the DataSources data table.Shape_LengthInternal feature length, doubleESRIUnrepresentable domainShape_AreaInternal feature area, doubleESRIUnrepresentable domainOrientationPointsPoint structure data (e.g., bedding attitudes, foliation attitudes, slip vectors measured at a point, etc.), one point per measurement. Multiple measurements at a single station (e.g., bedding and cleavage) should have the same StationsID. In the original file geodatabase, this dataset is found within the GeologicMap feature dataset.GeMSOBJECTIDInternal feature numberESRIUnrepresentable domainShapeInternal geometry objectESRIUnrepresentable domainTypeClassifier that specifies what kind of geologic feature is represented by a database element: that a certain line within feature class ContactsAndFaults is a contact, or thrust fault, or water boundary; or that a point in GeochronPoints represents a K-Ar date.GeMSFeature types and definitions can be found in the Glossary data table.AzimuthStrike or trend, measured in degrees clockwise from geographic North. Use right-hand rule (dip is to right of azimuth direction). Horizontal planar features may have any azimuth.GeMS0360degrees (angular measure)InclinationDip or plunge, measured in degrees down from horizontal. Negative values allowed when specifying vectors (not axes) that point above the horizon, e.g., paleocurrents. Types defined as horizontal (e.g., horizontal bedding) shall have Inclination=0.GeMS-9090degrees (angular measure)SymbolReference to a point marker, line symbol, or area-fill symbol that is used on the map graphic to denote the feature: perhaps a star for a K-Ar age locality, or a heavy black line for a fault.GeMSSymbol types and definitions can be found in the Glossary data table.MapUnitPrimary keyThisReportList of map units can be found in the DescriptionofMapUnits data table.UnitCodeEasily readable, meaningful plain-text identifier (no special characters) for the map-unit label. Null values permitted for map units that do not correspond to mapped features. For example, a group that is only mapped as its constituent formations.ThisReportList of unit codes can be found in the DescriptionofMapUnits data table.FullNameName of entity including identification of containing higher rank entity or entities if necessary.GeMSList of full names can be found in respective data table.OrigMapUnitCharacter identifier that represents a map-unit label as used on original sources cited in the DataSourceID fieldThisReportArbitrary stingLocalStratNameName as used on original sources cited in the DataSourceID fieldThisReportFree Text.LabelPlain-text equivalent of the desired annotation for a feature: for example "14 Ma", or "^c" which (when used with the FGDC GeoAge font) results in the geologic map-unit label TRc (with TR run together to make the Triassic symbol).GeMSList of labels can be found in the DescriptionofMapUnits data table.LocationConfidenceMetersEstimated half-width in meters of positional uncertainty envelope; position is relative to other features in database.GeMSPositive real number. Value of -9, -99, or -9999 indicates value is unknown.IdentityConfidenceConfidence that feature is correctly identified.GeMScertainIdentity of a feature can be determined using relevant observations and scientific judgment; therefore, one can be reasonably confident in the credibility of this interpretation.USGS, 2006questionableIdentity of a feature cannot be determined using relevant observations and scientific judgment; therefore, one cannot be reasonably confident in the credibility of this interpretation. For example, IdentityConfidence = questionable is appropriate when a geologist reasons "I can see some kind of planar feature that separates map units in this outcrop, but I cannot be certain if it is a contact or a fault."USGS, 2006OrientationConfidenceDegreesEstimated angular precision of combined azimuth AND inclination measurements, in degrees.GeMSPositive real number. Value of -9, -99, -999, or -9999 indicates value is unknown.PlotAtScaleAt what scale (or larger) should this observation or analysis be plotted? At smaller scales, it should not be plotted. Useful to prevent crowding of display at small scales and to display progressively more data at larger and larger scales. Value is scale denominator.GeMSPositive real number.NotesAdditional information specific to a particular feature or table entry.GeMSAdditional information specific to a particular feature or table entry. Can be found in the individual data dictionaries.MethodIDForeign key to Methods table.ThisReportList of Method id's can be found in the Methods data table.LocationSourceIDSource of location; foreign key to table DataSources.GeMSList of location sources can be found in the DataSources data table.OrientationSourceIDSource of orientation data; foreign key to table DataSources.GeMSList of orientation sources can be found in the DataSources data table.OrientationPoints_IDPrimary key.GeMSArbitrary string. Values should be unique within this database.ContributorIDIdentifies individual contributors to the map database. Foreign key to the Contributors tableThisReportList of contributors can be found in the Contributors data table.ContributorOrgIDIdentifies individual contributors to the map database. Foreign key to the Contributors tableThisReportList of contributor organizations can be found in the Contributors data table.TrackChangeIdentifies type of change made to a feature in the most recent version. Attributes include New features or records were added, and Attribution changes were made, for spatial features attributes also include Geometry changes were made.ThisReportAttributes include New features or records were added, and Attribution changes were made, for spatial features attributes also include Geometry changes were made.DatabaseVersionIDForeign key to the DatabaseReleaseVersions table. Foreign key in this field is applied to the entire database to reflect the most current release of the database.ThisReportList of database versions can be found in the DatabaseReleaseVersions data table.LastUpdateVersionIDForeign key to the DatabaseReleaseVersions table. Foreign key in this field refers to the database version in which feature or table record was last modified.ThisReportList of database versions can be found in the DatabaseReleaseVersions data table.U.S. Geological Survey - National Geologic Map Databasemailing address

12201 Sunrise Valley Dr

RestonVA20192USA(703) 648-5953ngmdb@usgs.govAny use of trade, product or firm names is for descriptive purposes only and does not implyendorsement by the U.S. Geological Survey. Although this information product, for the most part, is inthe public domain, it also contains copyrighted materials as noted in the text. Permission to reproducecopyrighted items for other than personal use must be secured from the copyright owner. This databasehas been approved for release and publication by the Director of the USGS. Although this database hasbeen subjected to rigorous review and is substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, it is released on condition that neitherthe USGS nor the United States Government may be held liable for any damages resulting from itsauthorized or unauthorized use. Although these data have been processed successfully on a computersystem at the U.S. Geological Survey, no warranty expressed or implied is made regarding the displayor utility of the data on any other system, or for general or scientific purposes, nor shall the act ofdistribution constitute any such warranty. The U.S. Geological Survey shall not be held liable forimproper or incorrect use of the data described and/or contained herein.20250419Michael G. FrothinghamU.S. Geological SurveyGeologistMailing Address

Denver Federal Center, MS 980 (Building 25)

DenverCO80225United States303-236-4610mfrothingham@usgs.govFGDCFGDC-STD-001-1998