Roy Sando - USGS Joanna Thamke - USGS 20140611 Vector Digital Data Set (Polygon) Scientific Investigations Report 2014-5047 Reston, Virginia U.S. Geological Survey https://water.usgs.gov/lookup/getspatial?sir2014-5047_extent_of_upper_Fort_Union_aquifer_in_Powder_River_and_Williston_basins Joanna N. Thamke Gary D. LeCain Derek W. Ryter Roy Sando Andrew J. Long 20140612 report Scientific Investigations Report 2014-5047 Reston, Virginia U.S. Geological Survey https://pubs.usgs.gov/sir/2014/5047/ These data represent the extent of the upper Fort Union aquifer in the Powder River and Williston structural basins. These data were compiled and created as part of the groundwater availability study of the Upper Cretaceous and lower Tertiary geohydrologic units in the Williston and Powder River structural basins. These data are intended for regional use and may not be as accurate at local or point scales. The files listed below are supplemental to the USGS SIR SIR 2014–5047 titled “Hydrogeologic Framework of the Uppermost Principal Aquifer Systems in the Williston and Powder River Structural Basins, United States and Canada” and should not be used without an understanding of what the files represent. To read the methods used to derive the data contained in these files, please read the “Methods” section of SIR 2014–5047. 2014 publication date Complete None planned -107.473614227 -100.188713642 49.331623365 42.707831127 USGS Thesaurus Williston basin Powder River basin Bedrock geology Groundwater availability Groundwater ISO 19115 Topic Category geoscientificInformation inlandWaters environment USGS Metadata Identifier USGS:f7dcee8b-8027-43b0-880e-45216f5419bc Geographic Names Information System Williston River Powder River United States Canada None. Please see 'Distribution Info' for details. None. Users are advised to read the data set's metadata thoroughly to understand appropriate use and data limitations. Wyoming-Montana Water Science Center Roy Sando Physical Scientist (GIS) mailing address

3162 Bozeman

Helena MT 59601-6456 406-457-5953 406-457-5990 tsando@usgs.gov https://water.usgs.gov/GIS/browse/sir2014-5047_extent_of_the_upper_Fort_Union_aquifer_in_the_Powder_River_and_Williston_structural_basins.jpg Illustration of data set jpg Derek Ryder, Gary LeCain, Julian Heilman, Jennifer Stanton, Andy Long, Jen Bednar, Katherine Aurand, Kyle Davis, Timothy Bartos, Dianne Rauche Environment as of Metadata Creation: Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; ESRI ArcCatalog 10.2 (Build 3497) Service Pack [N/A] (Build [N/A]) The areal extents of the six bedrock hydrogeologic units were simplified and modified from existing digital State and Province geologic maps. The scale of the original data sources ranged from 1:500,000 to 1:1,000,000. Polygons and erratic line segments less than 1.2 miles (mi) [2 kilometers (km)] in length from the existing digital geologic maps were removed for the map in figure 2. Discrepancies in hydrogeologic unit extents at political boundaries were merged by either adjusting extents equally on either side of the political boundary or by using bedrock-surface maps to guide location of unit extents. All of the extents were checked to ensure there were no areas where younger units extended out past older units. Data set is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details. A formal accuracy assessment of the horizontal positional information in the data set has not been conducted. A formal accuracy assessment of the vertical positional information in the data set has either not been conducted, or is not applicable. Nicolas, M.P.B., Matile, G.L.D., Keller, G.R., and Bamburak, J.D. 2010 Digital and/or Hardcopy Resources Manitoba, Canada Manitoba Geological Survey Digital and/or Hardcopy Resources 2010 publication date Manitoba geology Source information used in support of the development of the data set. Martin, J.E., Sawyer, J.F., Fahrenbach, M.D., Tomhave, D.W., and Schulz, L.D. 2004 Digital and/or Hardcopy Resources South Dakota South Dakota Geological Survey http://mrdata.usgs.gov/geology/state/state.php?state=SD Digital and/or Hardcopy Resources 2004 publication date SD geology Source information used in support of the development of the data set. Macdonald, R., and Slimmon, W.L. 1999 Digital and/or Hardcopy Resources Saskatchewan Saskatchewan Geological Survey http://economy.gov.sk.ca/geology_map Digital and/or Hardcopy Resources 1999 publication date Saskatchewan geology Source information used in support of the development of the data set. Bluemle, J.P. 1983 Digital and/or Hardcopy Resources North Dakota North Dakota Geological Survey https://apps.nd.gov/hubdataportal/srv/en/metadata.show?currTab=simple&id=83 Digital and/or Hardcopy Resources 1983 publication date ND geology Source information used in support of the development of the data set. Vuke, S.M., Porter, K.W, Lonn, J.D., Lopez, D.A. 2007 Digital and/or Hardcopy Resources Butte, MT Montana Bureau of Mines and Geology http://ngmdb.usgs.gov/Prodesc/proddesc_81651.htm Digital and/or Hardcopy Resources 2007 publication date MT geology Source information used in support of the development of the data set. Love, J.D., and Christiansen, A.C. 2005 Digital and/or Hardcopy Resources Reston, VA U.S. Geological Survey http://tin.er.usgs.gov/geology/state/state.php?state=WY Digital and/or Hardcopy Resources 2005 publication date WY geology Source information used in support of the development of the data set. For a description on the processing and development of this dataset, see the 'Methods' section of the associated Scientific Investigations Report 2014-5047 (https://pubs.usgs.gov/sir/2014/5047/). 2014 Vector G-polygon 6 LTUC lambert conformal conic (ESRI Full Name: LTUC_lambert_conformal_conic) 33.0 45.0 -104.0 0.0 0.0 0.0 coordinate pair 0.6096 0.6096 Meter D_North_American_1983 GRS_1980 6378137.0 298.257222101 Attribute Table Table containing attribute information associated with the data set. Producer defined Unit Hydrogeologic unit or aquifer Producer defined UFU Upper Fort Union aquifer Producer defined Shape_Length Unknown Producer defined 43682.2836846652 6563389.85085299 Meter Shape_Area Unknown Producer defined 54326732.2118326 135279807599.207 Square Meter RuleID Associated with the appropriate geologic symbology in ArcMap Producer defined 1 1 Override Unknown Producer defined Unknown Data Type The entity and attribute information provided here describes the tabular data associated with the data set. Please review the detailed descriptions that are provided (the individual attribute descriptions) for information on the values that appear as fields/table entries of the data set. The entity and attribute information was generated by the individual and/or agency identified as the originator of the data set. Please review the rest of the metadata record for additional details and information. U.S. Geological Survey Michael Ierardi IT Specialist mailing address

445 National Center

Reston Virginia 20192 USA 1-888-275-8747 (1-888-ASK-USGS) mierardi@usgs.gov Downloadable Data Although this data set has been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data and related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of this data, software, or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Vector Digital Data Set Full coverage 98 kb https://water.usgs.gov/GIS/dsdl/sir2014-5047_extent_of_the_upper_Fort_Union_aquifer_in_the_Powder_River_and_Williston_structural_basins.zip None. No fees are applicable for obtaining the data set. 20201117 U.S. Geological Survey Ask USGS -- Water Webserver Team mailing

445 National Center

Reston VA 20192 1-888-275-8747 (1-888-ASK-USGS) mierardi@usgs.gov FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998