Charles F. Wahl S. Alex Covert Lily Delmarsh Robert E. Zuellig Erin K. Hennessy 20260518 Multiple Comma Separated Values (CSV) files Reston, VA U.S. Geological Survey https://doi.org/10.5066/P9PUY4FC Invertebrate, fish, and habitat data were collected as part of a cooperative project that began in 2002 between the U.S. Geological Survey and Colorado Springs Utilities. Other entities have contributed to the project through the years including Colorado Parks and Wildlife and Colorado Springs Stormwater Enterprise. Habitat samples were collected and analyzed at 27 sites – 25 in the Fountain Creek Basin as well as two sites on the Arkansas River, El Paso and Pueblo Counties, Colorado. The number of sites sampled each year as well as the number of annual visits during which data were collected and sampling methods used during each visit vary. The habitat data were collected between 2002 and 2025 and are intended to be updated annually as new data are collected and available. Users of these data are advised to read all metadata and associated documentation thoroughly to understand appropriate use and data limitations. NOTE: Although previous versions are available from the author, all the records in previous versions can be found in version 6.0. First posted - January 7, 2022 (available from author) Revised - May, 2022 (version 2.0) Revised - March, 2023 (version 3.0) Revised - March 2024 (version 4.0) Revised - May 2025 (version 5.0) Revised - May 2026 (version 6.0) These data were collected to monitor and evaluate changes in invertebrate and fish communities and associated habitat in the greater Fountain Creek Basin, Colorado, USA. 2002 2025 ground condition Complete Annually Habitat samples were collected and analyzed at 27 sites – 25 in the Fountain Creek Basin as well as two sites on the Arkansas River, El Paso and Pueblo Counties, Colorado. The U.S. Geological Survey (USGS) Station Identification Number (SIN) (listed below) can be used to retrieve site information from the USGS National Water Information System (NWIS) database (NWIS, 2025). • ARKANSAS RIVER AT MOFFAT STREET AT PUEBLO, COLORADO. (USGS SIN 07099970); • ARKANSAS RIVER NEAR AVONDALE, COLORADO. (USGS SIN 07109500); • BEAR CREEK ABOVE 8TH STREET AT COLORADO SPRINGS, COLORADO. (USGS SIN 384909104504401); • BEAR CREEK NEAR COLORADO SPRINGS, COLORADO. (USGS SIN 07105000); • COTTONWOOD CREEK AT COWPOKE ROAD AT COLORADO SPRINGS, COLORADO. (USGS SIN 07103977); • COTTONWOOD CREEK TRIBUTARY ABOVE RANGEWOOD DRIVE AT COLORADO SPRINGS, COLORADO. (USGS SIN 07103985); • COTTONWOOD CREEK AT MOUTH AT PIKEVIEW, COLORADO. (USGS SIN 07103990); • COTTONWOOD CREEK AT WOODMEN ROAD NEAR COLORADO SPRINGS, COLORADO. (USGS SIN 07103980); • FOUNTAIN CREEK BELOW JANITELL ROAD BELOW COLORADO SPRINGS, COLORADO. (USGS SIN 07105530); • FOUNTAIN CREEK AT COLORADO SPRINGS, COLORADO. (USGS SIN 07105500); • FOUNTAIN CREEK AT PUEBLO, COLORADO. (USGS SIN 07106500); • FOUNTAIN CREEK AT SECURITY, COLORADO. (USGS SIN 07105800); • FOUNTAIN CREEK BELOW 8TH STREET, AT COLORADO SPRINGS, COLORADO. (USGS SIN 07103707); • FOUNTAIN CREEK NEAR COLORADO SPRINGS, COLORADO. (USGS SIN 07103700); • FOUNTAIN CREEK NEAR FOUNTAIN, COLORADO. (USGS SIN 07106000); • FOUNTAIN CREEK NEAR PINON, COLORADO. (USGS SIN 07106300); • JIMMY CAMP CREEK AT FOUNTAIN, COLORADO. (USGS SIN 07105900); • KETTLE CREEK ABOVE OLD RANCH ROAD NEAR COLORADO SPRINGS, COLORADO. (USGS SIN 385854104470100); • KETTLE CREEK ABOVE UNITED STATES AIR FORCE ACADEMY, COLORADO. (USGS SIN 07103960); • MONUMENT CREEK ABOVE WOODMEN ROAD AT COLORADO SPRINGS, COLORADO. (USGS SIN 07103970); • MONUMENT CREEK TRIBUTARY 1 NEAR PULPIT ROCK AT COLORADO SPRINGS, COLORADO. (USGS SIN 385501104483701); • MONUMENT CREEK TRIBUTARY 2 AT SONDERMANN PARK AT COLORADO SPRINGS (USGS SIN 385124104501301); • MONUMENT CREEK TRIBUTARY 2 BELOW FILLMORE STREET AT COLORADO SPRINGS (USGS SIN 385204104510101); • MONUMENT CREEK AT BIJOU STREET AT COLORADO SPRINGS, COLORADO. (USGS SIN 07104905); • NORTH ROCKRIMMON CREEK ABOVE DELMONICO DRIVE AT COLORADO SPRINGS, COLORADO. (USGS SIN 07104050); • PINE CREEK ABOVE HIGHWAY 83 AT COLORADO SPRINGS, COLORADO. (USGS SIN 385750104475001); • SUTHERLAND DITCH AT MOUTH NEAR PINON, COLORADO. (USGS SIN 382625104353701). -104.9718 -104.3991 39.1026 38.2481 USGS Thesaurus aquatic biology aquatic ecosystems ecology invertebrates surface water (non-marine) USGS Biocomplexity Thesaurus Aquatic biology Benthic environments Community ecology Ecology Rivers USGS Metadata Identifier USGS:61b798f2d34e78124560f89f Getty Thesaurus of Geographic Names United States Colorado No access constraints. Please see 'Distribution Info' for details. These data are marked with a Creative Commons Zero v1.0 Universal (CC0-1.0) public domain dedication and do not have any use constraints. Users are advised to read the dataset's metadata thoroughly to understand appropriate use and data limitations. Charles F Wahl ROCKY MOUNTAIN REGION: COLORADO WATER SCI CTR Ecologist mailing and physical

Mail Stop 415, W 6th Ave Kipling St

Denver CO 80225 US 720-768-6158 cwahl@usgs.gov Faith A. Fitzpatrick Ian R. Waite Patricia J. D'Arconte Michael Meador Molly A. Maupin Martin E. Gurtz 1998 publication Reston, VA U.S. Geological Survey Stream habitat data were collected in the field using U.S. Geological Survey methods outlined by Fitzpatrick and others (1998). https://doi.org/10.3133/wri984052 No formal attribute accuracy tests were conducted. No formal logical accuracy tests were conducted. Dataset 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. No formal positional accuracy tests were conducted. No formal positional accuracy tests were conducted. U.S. Geological Survey 2025 application/service Reston, VA U.S. Geological Survey https://doi.org/10.5066/f7p55kjn Digital and/or Hardcopy 2025 ground condition NWIS, 2025 Site identification information Stream habitat data were collected in the field using U.S. Geological Survey methods outlined by Fitzpatrick and others, 1998. 2025 Created a database using data that were collected in the field. Sampling method information and habitat data are in .csv files, Habitat_Samp_Info.csv and Habitat_Summary_File.csv. 2025 Habitat samples were collected and analyzed at 27 sites – 25 in the Fountain Creek Basin as well as two sites on the Arkansas River, El Paso and Pueblo Counties, Colorado. The U.S. Geological Survey (USGS) Station Identification Number (SIN) (listed below) can be used to retrieve site information from the USGS National Water Information System (NWIS) database (NWIS, 2024). • ARKANSAS RIVER AT MOFFAT STREET AT PUEBLO, COLORADO. (USGS SIN 07099970); • ARKANSAS RIVER NEAR AVONDALE, COLORADO. (USGS SIN 07109500); • BEAR CREEK ABOVE 8TH STREET AT COLORADO SPRINGS, COLORADO. (USGS SIN 384909104504401); • BEAR CREEK NEAR COLORADO SPRINGS, COLORADO. (USGS SIN 07105000); • COTTONWOOD CREEK AT COWPOKE ROAD AT COLORADO SPRINGS, COLORADO. (USGS SIN 07103977); • COTTONWOOD CREEK TRIBUTARY ABOVE RANGEWOOD DRIVE AT COLORADO SPRINGS, COLORADO. (USGS SIN 07103985); • COTTONWOOD CREEK AT MOUTH AT PIKEVIEW, COLORADO. (USGS SIN 07103990); • COTTONWOOD CREEK AT WOODMEN ROAD NEAR COLORADO SPRINGS, COLORADO. (USGS SIN 07103980); • FOUNTAIN CREEK BELOW JANITELL ROAD BELOW COLORADO SPRINGS, COLORADO. (USGS SIN 07105530); • FOUNTAIN CREEK AT COLORADO SPRINGS, COLORADO. (USGS SIN 07105500); • FOUNTAIN CREEK AT PUEBLO, COLORADO. (USGS SIN 07106500); • FOUNTAIN CREEK AT SECURITY, COLORADO. (USGS SIN 07105800); • FOUNTAIN CREEK BELOW 8TH STREET, AT COLORADO SPRINGS, COLORADO. (USGS SIN 07103707); • FOUNTAIN CREEK NEAR COLORADO SPRINGS, COLORADO. (USGS SIN 07103700); • FOUNTAIN CREEK NEAR FOUNTAIN, COLORADO. (USGS SIN 07106000); • FOUNTAIN CREEK NEAR PINON, COLORADO. (USGS SIN 07106300); • JIMMY CAMP CREEK AT FOUNTAIN, COLORADO. (USGS SIN 07105900); • KETTLE CREEK ABOVE OLD RANCH ROAD NEAR COLORADO SPRINGS, COLORADO. (USGS SIN 385854104470100); • KETTLE CREEK ABOVE UNITED STATES AIR FORCE ACADEMY, COLORADO. (USGS SIN 07103960); • MONUMENT CREEK ABOVE WOODMEN ROAD AT COLORADO SPRINGS, COLORADO. (USGS SIN 07103970); • MONUMENT CREEK TRIBUTARY 1 NEAR PULPIT ROCK AT COLORADO SPRINGS, COLORADO. (USGS SIN 385501104483701); • MONUMENT CREEK TRIBUTARY 2 AT SONDERMANN PARK AT COLORADO SPRINGS (USGS SIN 385124104501301); • MONUMENT CREEK TRIBUTARY 2 BELOW FILLMORE STREET AT COLORADO SPRINGS (USGS SIN 385204104510101); • MONUMENT CREEK AT BIJOU STREET AT COLORADO SPRINGS, COLORADO. (USGS SIN 07104905); • NORTH ROCKRIMMON CREEK ABOVE DELMONICO DRIVE AT COLORADO SPRINGS, COLORADO. (USGS SIN 07104050); • PINE CREEK ABOVE HIGHWAY 83 AT COLORADO SPRINGS, COLORADO. (USGS SIN 385750104475001); • SUTHERLAND DITCH AT MOUTH NEAR PINON, COLORADO. (USGS SIN 382625104353701). Point Habitat_Samp_Info.csv Contains habitat sampling method information for each sample collected during the period of record. Producer generated (Robert Zuellig, USGS). SIDNO Unique sample identification number. Producer-defined. Unique sample identification number. Format of identification numbers changed in 2020 due to database changes. SiteNumber USGS site number: unique USGS station number indicating location where the ecological samples were collected. "T" appended to beginning of site number to maintain format. NWIS, 2025 USGS site numbers represent either a geographic location, represented by latitude and longitude of 15 digits, or an 8-digit or more network sequence number. SiteName USGS site name. NWIS, 2025 USGS site name. ABV, above; BLW, below; CO, Colorado; CR, Creek; DR, Drive; N, North; NR, near; RD, Road; SPRGS, Springs; ST, Street; TRIB, tributary; US, United States; USAF, United States Air Force. StudyReachName Name given to identify the longitudinal section of a stream that was selected for sampling. Producer-defined. USGS site numbers represent either a geographic location, represented by latitude and longitude of 15-digits, or an 8-digit or more network sequence number combined with "A-FountainCk". "-A-FountainCk" refers to invertebrate sampling reach being the whole study reach. StartTime Time sampling activities started in 24-hour format (HH:MM). Producer-defined. 06:35 17:35 24-hour format (HH:MM) CollectionDate Date sample was collected (MM/DD/YYYY) Producer-defined. 11/06/2002 09/26/2025 Date (MM/DD/YYYY) CollectionYear Year in which sample was collected (YYYY). Producer-defined. 2002 2025 Year (YYYY). CollectionMonth Month in which sample was collected (MM). Producer-defined. 09 12 Month (MM). CollectionDayOfYear Day-of-year when sample was collected. The number of days since the beginning of the year. Producer-defined. 267 342 Day of year. SampleTypeCode Code indicating the type of sample collected. Producer-defined. RHAB Methods for characterizing stream reach habitat (RHAB) Fitzpatrick and others, 1998 HabSampQuality Quality of the habitat sampling effort as determined by the collector. Producer-defined. NA Not available. Producer-defined. Excellent Excellent habitat sampling effort. Producer-defined. Fair Fair habitat sampling effort. Producer-defined. Good Good habitat sampling effort. Producer-defined. Poor Poor habitat sampling effort. Producer defined. ChnMod Type(s) of channel modification observed at the reach. Producer-defined. NA Not available. Producer-defined. Channelized; not stabilized "Channelized; not stabilized" channel modification type. Producer-defined. Concrete lined "Concrete lined" channel modification type. Producer-defined. Lightly affected "Lightly affected" channel modification type. Producer-defined. Not characterized Channel modification type not characterized. Producer-defined. Not modified Channel not modified. Producer-defined. Stabilized "Stabilized" channel modification type. Producer-defined. Not stabilized Not stabilized Producer defined DistBtwTr_m Distance between transects measured along the thalweg (meters). Producer-defined. NA Not available. Producer-defined. 10 60 meters WaterSurfGrad Difference between the water-surface elevation at the top and bottom of the reach divided by the curvilinear reach length (dimensionless). Producer-defined. NA Not available. Producer-defined. 0.004 0.062 Habitat_Summary_File.csv Contains habitat results for each sample collected during the period of record. Producer generated (Robert Zuellig, USGS). SIDNO Unique sample identification number. Producer-defined. Unique sample identification number. Format of identification numbers changed in 2020 due to database changes. SiteNumber USGS site number: unique USGS station number indicating location where the ecological samples were collected. "T" appended to beginning of site number to maintain format. NWIS, 2025 USGS site numbers represent either a geographic location, represented by latitude and longitude of 15 digits, or an 8-digit or more network sequence number. SiteName USGS site name. NWIS, 2025 USGS site name. ABV, above; BLW, below; CO, Colorado; CR, Creek; DR, Drive; N, North; NR, near; RD, Road; SPRG, Springs; SPRGS, Springs; ST, Street; TRIB, tributary; US, United States; USAF, United States Air Force. StudyReachName Name given to identify the longitudinal section of a stream that was selected for sampling. Producer-defined. USGS site numbers represent either a geographic location, represented by latitude and longitude of 15-digits, or an 8-digit or more network sequence number combined with "A-FountainCk". "-A-FountainCk" refers to invertebrate sampling reach being the whole study reach. StartTime Time sampling activities started in 24-hour format (HH:MM). Producer-defined. 06:35 17:35 24-hour format (HH:MM) CollectionDate Date sample was collected (MM/DD/YYYY). Producer-defined. 11/06/2002 09/26/2025 Date (MM/DD/YYYY) CollectionYear Year in which sample was collected (YYYY). Producer-defined. 2002 2025 Year (YYYY). CollectionMonth Month in which sample was collected (MM). Producer-defined. 09 12 Month (MM). CollectionDayOfYear Day-of-year when sample was collected. The number of days since the beginning of the year. Producer-defined. 267 342 Day of year. SampleTypeCode Code indicating the type of sample collected. Producer-defined. RHAB Methods for characterizing stream reach habitat (RHAB) Fitzpatrick and others, 1998 HabSampQuality Quality of the habitat sampling effort as determined by the collector. Producer-defined. NA Not available. Producer-defined. Excellent Excellent habitat sampling effort. Producer-defined. Fair Fair habitat sampling effort. Producer-defined. Good Good habitat sampling effort. Producer-defined. Poor Poor habitat sampling effort. Producer defined ChnMod Type(s) of channel modification observed at the reach. Producer-defined. NA Not available. Producer-defined. Channelized; not stabilized "Channelized; not stabilized" channel modification type. Producer-defined. Concrete lined "Concrete lined" channel modification type. Producer-defined. Lightly affected "Lightly affected" channel modification type. Producer-defined. Not characterized Channel modification type not characterized. Producer-defined. Not modified Channel not modified. Producer-defined. Stabilized "Stabilized" channel modification type. Producer-defined. Not stablilzed "Not stabilized" channel modification type. Producer defined ReachLength_m The curvilinear length of the habitat sampling reach in meters. Producer-defined. NA Not available. Producer-defined. 30 305 Meters. DistBtwTr_m Distance between transects measured along the thalweg (meters). Producer-defined. NA Not available. Producer-defined. 10 60 meters WaterSurfGrad Difference between the water-surface elevation at the top and bottom of the reach divided by the curvilinear reach length (dimensionless). Producer-defined. NA Not available. Producer-defined. 0.004 0.062 TransectNumber_cnt The number of transects established in the sampling reach. Producer-defined. NA Not available. Producer-defined. 3 6 The number of transects established in the sampling reach. mean_WettedChannelWidth_m The mean wetted channel width of the sampling reach in meters. Producer-defined. NA Not available. Producer-defined. 0.67 51.37 Meters. mean_BankfullChannelWidth_m The mean bank full channel width of the sampling reach in meters. Producer-defined. NA Not available. Producer-defined. 2.58 141.67 Meters. mean_BankAngleLB_deg The mean bank angle of the left bank (looking downstream) of the sampling reach in degrees. Producer-defined. NA Not available. Producer-defined. 7.83 90.00 Degrees. mean_BankAngleRB_deg The mean bank angle of the right bank (looking downstream) of the sampling reach in degrees. Producer-defined. NA Not available. Producer-defined. 5.33 90.00 Degrees. mean_BankAngle_deg The mean bank angle of the sampling reach in degrees. Producer-defined. NA Not available. Producer-defined. 14.17 83.25 Degrees. mean_BankfullHeightLB The mean bankfull height of the left bank (looking downstream) of the sampling reach in meters, vertical distance from channel bottom at thalweg to top of left bank. Producer-defined. NA Not available. Producer-defined. 0.45 10.74 Meters. mean_BankfullHeightRB The mean bankfull height of the right bank (looking downstream) of the sampling reach in meters, vertical distance from channel bottom at thalweg to top of right bank. Producer-defined. NA Not available. Producer-defined. 0.2 5.25 Meters. mean_BankfullHeight The mean bankfull height of the sampling reach in meters, vertical distance from channel bottom at thalweg to top of the bank. Producer-defined. NA Not available. Producer-defined. 0.42 6.58 Meters. TransectPoint_cnt The total number of transect points measured for the sampling reach. Producer-defined. NA Not available. Producer-defined. 9 30 The total number of transect points measured for the sampling reach. mean_Depth_m The mean wetted stream depth of the sampling reach in meters. Producer-defined. NA Not available. Producer-defined. 0.02 1.74 Meters. mean_Depth_rmk Remark code for mean_Depth_m field. Producer-defined. e Estimated mean_Depth_m value. Producer-defined. NR No remark. Producer-defined. unable to cross river at transects 1 through 5 unable to cross river at transects 1 through 5 Producer defined water backed up from beaver dam water backed up from beaver dam Producer defined mean_MnWaterColumnVelocity_ft_s The mean water column velocity of the sampling reach in feet per second. Producer-defined. NA Not available. Producer-defined. 0.02 3.37 feet per second. mean_MnWaterColumnVelocity_rmk Remark code for mean_MnWaterColumnVelocity_ft_s field. Producer-defined. e Estimated mean_MnWaterColumnVelocity_ft_s value. Producer-defined. NR No remark. Producer-defined. Flow higher than last year Flow higher than last year Producer defined mean_Thalweg_Depth_m The mean stream depth of the stream reach at the thalweg in meters. Producer-defined. NA Not available. Producer-defined. 0.05 2.12 Meters. mean_Thalweg_MnWaterColumnVelocity_ft_s The mean water column velocity of the sampling reach at the thalweg in feet per second. Producer-defined. NA Not available. Producer-defined. 0.04 4.42 feet per second. mean_Thalweg_MnWaterColumnVelocity_rmk Remark code for mean_Thalweg_MnWaterColumnVelocity_ft_s field. Producer-defined. e Estimated mean_Thalweg_MnWaterColumnVelocity_ft_s value. Producer-defined. NR No remark. Producer-defined. mean_Embeddedness_pct Visual estimation of the percentage of the surface area of larger substrate particles (boulder, cobble, or gravel) that is surrounded or covered by fine grained sediment (sand, or finer). Embeddedness is 0 percent if there are no fines surrounding or covering the larger particles and is 100 percent if they are completely covered by sand or finer substrate. Bedrock or concrete is also considered 100 percent embedded. Producer-defined. NA Not available. Producer-defined. 16.11 100.00 Percent. PerPool The percentage of the sampling reach composed of pool habitat. Producer-defined. NA Not available. Producer-defined. 0 65 The percentage of the sampling reach composed of pool habitat. PerRiffle The percentage of the sampling reach composed of riffle habitat. Producer-defined. NA Not available. Producer-defined. 0 100 The percentage of the sampling reach composed of riffle habitat. PerRun The percentage of the sampling reach composed of run habitat. Producer-defined. NA Not available. Producer-defined. 0 100 The percentage of the sampling reach composed of run habitat. SiltClay The number of silt or clay particles less than (<) 0.062 millimeters; not gritty. Producer-defined. NA Not available. Producer-defined. 0 76 Number of particles. Sand The number of sand particles less than (<) 2 millimeters; gritty. Producer-defined. NA Not available. Producer-defined. 3 77 Number of particles. VeryFineGravel The number of very fine gravel particles 2-4 millimeters. Producer-defined. NA Not available. Producer-defined. 0 66 Number of particles. FineGravel1 The number of fine gravel particles greater than (>) 4-6 millimeters. Producer-defined. NA Not available. Producer-defined. 0 37 Number of particles. FineGravel2 The number of fine gravel particles greater than (>) 6-8 millimeters. Producer-defined. NA Not available. Producer-defined. 0 28 Number of particles. MediumGravel1 The number of medium gravel particles greater than (>) 8-12 millimeters. Producer-defined. NA Not available. Producer-defined. 0 40 Number of particles. MediumGravel2 The number of medium particles greater than (>) 12-16 millimeters. Producer-defined. NA Not available. Producer-defined. 0 17 Number of particles. CoarseGravel1 The number of coarse gravel particles greater than (>) 16-24 millimeters. Producer-defined. NA Not available. Producer-defined. 0 26 Number of particles. CoarseGravel2 The number of coarse gravel particles greater than (>) 24-32 millimeters. Producer-defined. NA Not available. Producer-defined. 0 15 Number of particles. VeryCoarseGravel1 The number of very coarse gravel particles greater than (>) 32-48 millimeters. Producer-defined. NA Not available. Producer-defined. 0 23 Number of particles. VeryCoarseGravel2 The number of very coarse gravel particles greater than (>) 48-64 millimeters. Producer-defined. NA Not available. Producer-defined. 0 19 Number of particles. SmallCobble1 The number of small cobble particles greater than (>) 64-96 millimeters. Producer-defined. NA Not available. Producer-defined. 0 49 Number of particles. SmallCobble2 The number of small cobble particles greater than (>) 96-128 millimeters. Producer-defined. NA Not available. Producer-defined. 0 23 Number of particles. LargeCobble1 The number of large cobble particles greater than (>) 128-192 millimeters. Producer-defined. NA Not available. Producer-defined. 0 25 Number of particles. LargeCobble2 The number of large cobble particles greater than (>) 192-256 millimeters. Producer-defined. NA Not available. Producer-defined. 0 16 Number of particles. SmallBoulder1 The number of small boulder particles greater than (>) 256-384 millimeters. Producer-defined. NA Not available. Producer-defined. 0 11 Number of particles. SmallBoulder2 The number of small boulder particles greater than (>) 384-512 millimeters. Producer-defined. NA Not available. Producer-defined. 0 6 Number of particles. MediumBoulder The number of medium boulder particles greater than (>) 512-1024 millimeters. Producer-defined. NA Not available. Producer-defined. 0 9 Number of particles. LargeorVeryLargeBoulder The number of large or very large boulder particles greater than (>) 1024-4096 millimeters. Producer-defined. NA Not available. Producer-defined. 0 10 Number of particles. Bedrock The number of bedrock particles greater than (>) 4096 millimeters. Producer-defined. NA Not available. Producer-defined. 0 45 Number of particles. Pebble_cnt The total number of substrate particles measured within the sampling reach. Producer-defined. NA Not available. Producer-defined. 72 195 The total number of substrate particles measured within the sampling reach. U.S. Geological Survey GS ScienceBase mailing address

Denver Federal Center, Building 810, Mail Stop 302

Denver CO 80225 United States 1-888-275-8747 sciencebase@usgs.gov Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Unless 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 for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty. Digital Data https://doi.org/10.5066/P9PUY4FC None. No fees are applicable for obtaining the dataset. 20260518 Charles F Wahl U.S. Geological Survey, ROCKY MOUNTAIN REGION Ecologist mailing address

Mail Stop 415, W 6th Ave Kipling St

Lakewood CO 80225 US 720-768-6158 cwahl@usgs.gov FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata FGDC-STD-001.1-1999