Jordan C. Craft John D. Horton 20250321 vector digital data U.S. Geological Survey data release DOI: 10.5066/P1UYWNRT Denver, Colorado U.S. Geological Survey Additional information about Originators: Craft, J.C., https://orcid.org/0009-0008-0650-8645; Horton, J.D., https://orcid.org/0000-0003-2969-9073 Suggested citation: Craft, J.C., and Horton, J.D., 2025, GIS data for geologic map of the eastern part of the Challis National Forest and vicinity, Idaho: U.S. Geological Survey data release, https://doi.org/10.5066/P1UYWNRT. https://doi.org/10.5066/P1UYWNRT Anna B. Wilson Betty Skipp 1994 publication U.S. Geological Survey Miscellaneous Investigations Series MAP I-2395 Denver, Colorado U.S. Geological Survey Suggested citation: Wilson, A.B., and Skipp, Betty, 1994, Geologic map of the eastern part of the Challis National Forest and vicinity, Idaho: U.S. Geological Survey, Miscellaneous Investigations Series Map I-2395, scale 1:250,000, https://doi.org/10.3133/i2395. https://doi.org/10.3133/i2395 This U.S. Geological Survey (USGS) data release provides a digital geospatial database for the geologic map of the eastern part of the Challis National Forest and vicinity, Idaho (Wilson and Skipp, 1994). Attribute tables and geospatial features (lines and polygons) conform to the Geologic Map Schema (USGS NCGMP, 2020) and represent the geologic map as published in USGS Miscellaneous Investigations Series Map I-2395. The 2.7-million-acre map area represents the geology at a publication scale of 1:250,000. The map covers primarily Butte, Custer, Lemhi and Blaine Counties, but also includes minor parts of Clark County. References: Wilson, A.B., and Skipp, Betty, 1994, Geologic map of the eastern part of the Challis National Forest and vicinity, Idaho: U.S. Geological Survey, Miscellaneous Investigations Series Map I-2395, scale 1:250,000, https://doi.org/10.3133/i2395. U.S. Geological Survey National Cooperative Geologic Mapping Program, 2020, GeMS (Geologic Map Schema) - A standard format for the digital publication of geologic maps: U.S. Geological Survey Techniques and Methods, book 11, chap. B10, 74 p., https://doi.org//10.3133/tm11B10. The purpose of this data release is to provide Geologic Map Schema (GeMS)-compliant data for the geologic map of the eastern part of the Challis National Forest and vicinity, Idaho. Development and publication of modern GIS data for geologic maps is foundational and high priority to the USGS Mineral Resources Program (MRP) to facilitate on-going research and other activities pertaining to critical mineral deposits as well as to other geologic and geophysical mapping efforts, petrologic studies, and mineral resource assessments. ChallisNF_I-2395.gdb 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/. A shapefile version 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. The Esri file geodatabase (ChallisNF_I-2395.gdb) contains the following elements: --GeologicMap: feature dataset (subdirectory) containing the following feature classes (GIS layers): ----ContactsAndFaults: line layer representing locations of contacts and faults. ----DataSourcePolys: polygon layer representing the spatial extent of data sources and (or) references used within the map boundary. ----MapUnitPolys: polygon layer representing the distribution of geologic map units. --DataSources: table that lists sources and (or) references used to derive spatial features (lines and polygons) and attribute information. --DescriptionOfMapUnits: table of map unit descriptions derived from the collar of the geologic map or geologic map pamphlet. The hierarchical order of map units is coded in the HierarchyKey field. --GeoMaterialDict: table that defines and lists lithology terms in hierarchical order used in the GeoMaterial field of the DescriptionOfMapUnits table. The standardized vocabulary is available in Appendix 1 of the GeMS documentation. --Glossary: table that defines and lists sources of terms used in the database. --RepurposedSymbols: table that identifies FGDC symbols that have been repurposed for the map. Reference: U.S. Geological Survey National Cooperative Geologic Mapping Program, 2020, GeMS (Geologic Map Schema)- A standard format for the digital publication of geologic maps: U.S. Geological Survey Techniques and Methods, book 11, chap. B10, 74 p., https://doi.org//10.3133/tm11B10. 20250321 publication date Complete None planned -114.4994 -112.8753 44.8761 43.5004 ISO 19115 Topic Category geoscientificInformation USGS Thesaurus bedrock geologic units geographic information systems geologic maps geology geospatial datasets structural geology None U.S. Geological Survey USGS Mineral Resources Program MRP Geology, Geophysics and Geochemistry Science Center GGGSC National Cooperative Geologic Mapping Program NCGMP National Geologic Map Database NGMDB Geologic Map Schema GeMS USGS Metadata Identifier USGS:65860722d34eff134d4371f9 Geographic Names Information System (GNIS) Blaine County Butte County Challis Challis National Forest Clark County Custer County Dubois Hailey Idaho Falls Lemhi County Common geographic areas Idaho ID None. Please see 'Distribution Info' for details. These data are intended for use at approximately 1:250,000-scale or smaller. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although these data have been processed successfully on a computer system at 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. The USGS or the U.S. Government shall not be held liable for improper or incorrect use of the data described and/or contained herein. Karen Lund U.S. Geological Survey, ROCKY MOUNTAIN REGION Research Geologist mailing address

Mail Stop 973, W 6th Ave Kipling St

Lakewood CO 80225 US 303-236-5600 303-236-3200 klund@usgs.gov Work was accomplished by the U.S. Geological Survey Geology, Geophysics, and Geochemistry Science Center (GGGSC) with support from the Mineral Resources Program (MRP) and the FEDMAP component of the National Cooperative Geologic Mapping Program. Microsoft Windows 10 Enterprise, Version 22H2 (Build 19045.3693); Esri ArcGIS Pro 3.4.3 Unique values in attribute fields were checked through frequency analyses. The unique values in each attribute field were reviewed and checked for spelling, consistency of terms, accuracy, adherence to established vocabularies, and completeness. Text terms and values entered by USGS authors were reviewed and verified. Confidence that a feature exists and confidence that a feature is correctly identified are described in per-feature attributes ExistenceConfidence and IdentityConfidence. GIS layer and attribute information were digitized and extracted directly into the GeMS database structure. Attribute values were modified for consistency with GeMS terminology. Topology tests were conducted on polygon and line feature classes to ensure spatial integrity of the data. Polygon and line features were digitized from the I-2395 map and quality assured for completeness. Textual information from the original printed map ‘Description of Map Units’ section was transcribed into the DescriptionOfMapUnits table. Horizontal accuracy of line and polygon features is dependent on the accuracy of the 1:250,000 scale source map. Map publication techniques employed in 1994 resulted in variable line quality and accuracy. Estimated accuracy of horizontal location, provided on a per-feature basis in the attribute field LocationConfidenceMeters in GeMS, was assigned a value of -9 indicating unknown. Vertical accuracy testing does not apply to this dataset. Anna B. Wilson Betty Skipp 1994 publication U.S. Geological Survey Miscellaneous Investigations Series MAP I-2395 Denver, CO U.S. Geological Survey Suggested citation: Wilson, A.B., and Skipp, Betty, 1994, Geologic map of the eastern part of the Challis National Forest and vicinity, Idaho: U.S. Geological Survey, Miscellaneous Investigations Series Map I-2395, scale 1:250,000, https://doi.org/10.3133/i2395. https://doi.org/10.3133/i2395 Digital and/or Hardcopy 1994 publication date Wilson and Skipp, 1994 Original published geologic map. Georeferenced image from the National Geologic Map Database (NGMDB) accessed 2023 at: https://ngmdb.usgs.gov/Prodesc/proddesc_10267.htm U.S. Geological Survey National Cooperative Geologic Mapping Program 2020 publication U.S. Geological Survey Techniques and Methods book 11, chapter B10 Reston, Virginia U.S. Geological Survey Suggested citation: U.S. Geological Survey National Cooperative Geologic Mapping Program, 2020, GeMS (Geologic Map Schema) - A standard format for the digital publication of geologic maps: U.S. Geological Survey Techniques and Methods, book 11, chap. B10, 74 p., https://doi.org/10.3133/tm11B10. https://doi.org/10.3133/tm11B10 Digital and/or Hardcopy 2020 publication date USGS NCGMP, 2020 Database schema and some attribute definitions. Neuendorf, K.K.E. Mehl, J.P. Jackson, J.A. 2011 fifth publication Alexandria, Virginia American Geological Institute Suggested citation: Neuendorf, K.K.E., Mehl, J.P., Jr., and Jackson, J.A., 2011, Glossary of Geology (5th ed.): Alexandria, Va., American Geological Institute, 779 p. Digital and/or Hardcopy 2011 publication date Neuendorf and others, 2011 Definitions of some attributes. Federal Geographic Data Committee 2006 publication Reston, Virginia Federal Geographic Data Committee Suggested citation: Federal Geographic Data Committee [prepared for the Federal Geographic Data Committee by the U.S. Geological Survey], 2006, FGDC Digital Cartographic Standard for Geologic Map Symbolization: Reston, Va., Federal Geographic Data Committee Document Number FGDC-STD-013-2006, 290 p., 2 plates, https://ngmdb.usgs.gov/fgdc_gds/geolsymstd.php. https://ngmdb.usgs.gov/fgdc_gds/geolsymstd.php Digital and/or Hardcopy 2006 publication date FGDC, 2006 Standardized geologic map symbolization used for symbolizing the map. Wilson and Skipp (1994) compiled the geology and published the original paper geologic map at 1:250,000 scale. ARC/INFO 7.x GIS data for the original map were published in 2000. While representative of the technology of that time, these legacy GIS data contain accuracy and resolution issues and thus were not used. For this data release, the georeferenced image of the original map from the National Geologic Map Database was re-digitized. Attributes were populated to conform to the Geologic Map Schema (GeMS) standard for geologic map publications (USGS NCGMP, 2020). Definitions of these values are derived from the printed map (Wilson and Skipp, 1994), GeMS (USGS NCGMP, 2020), and from the Glossary of Geology (Neuendorf and others, 2011). Map unit colors were matched to the original publication as best possible and are provided as RGB values in the AreaFillRGB field of the DescriptionOfMapUnits table. Map unit colors are also provided in the custom Esri Style file. Geologic map symbolization was also matched to the original publication as best possible using the FGDC Digital Cartographic Standard for Geologic Map Symbolization (FGDC, 2006). These values are provided in the Symbol attribute fields and the included Esri Style file. Topology tests were conducted on polygon and line feature classes to ensure spatial integrity of the data. The geodatabase was confirmed to be GeMS compliant using validation tools. Wilson and Skipp, 1994 USGS NCGMP, 2020 Neuendorf and others, 2011 FGDC, 2006 2024 Vector G-polygon 1232 String 2266 Universal Transverse Mercator 12 0.9996 -111.0 0.0 500000.0 0.0 coordinate pair 0.6096 0.6096 meters D_North_American_1927 Clarke_1866 6378206.4 294.9786982138982 Attribute Fields The attribute fields contain attribute information associated with features or records in the data set. The translated shapefile field name that is limited to 10 characters is provided in square brackets as needed. Attribute fields occur in data layer(s) and/or tables noted in parentheses. USGS Authors Age (DescriptionOfMapUnits) Age of map unit as shown in Description of Map Units. USGS NCGMP, 2020 Examples of values: "Devonian" or "Middle Ordovician" AreaFillPatternDescription [PatDes] (DescriptionOfMapUnits) Text description (for example, "random small red dashes") provided as a convenience for users who must recreate symbolization. USGS NCGMP, 2020 Example of values: "Solid" AreaFillRGB [RGB] (DescriptionOfMapUnits) {Red, Green, Blue} tuples that specify the suggested color (for example, "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. USGS NCGMP, 2020 Example of values: "253,239,120" ContactsAndFaults_ID [CAFs_ID] (ContactsAndFaults) Unique alpha-numeric value assigned to each feature (primary key). USGS NCGMP, 2020 Values are unique within this database. Example of values: "CAF0001" DataSources_ID [DatSrc_ID] (DataSources) Unique alpha-numeric value assigned to each feature (primary key). USGS NCGMP, 2020 DAS01 Wilson and Skipp, 1994 Wilson, A.B., and Skipp, Betty, 1994, Geologic map of the eastern part of the Challis National Forest and vicinity, Idaho: U.S. Geological Survey, Miscellaneous Investigations Series Map I-2395, scale 1:250,000, https://doi.org/10.3133/i2395. DAS02 Neuendorf and others, 2011 Neuendorf, K.K.E., Mehl, J.P., Jr., and Jackson, J.A., 2011, Glossary of Geology (5th ed.): Alexandria, Va., American Geological Institute, 779 p. DAS03 USGS NCGMP, 2020 U.S. Geological Survey National Cooperative Geologic Mapping Program, 2020, GeMS (Geologic Map Schema) - A standard format for the digital publication of geologic maps: U.S. Geological Survey Techniques and Methods, book 11, chap. B10, 74 p., https://doi.org/10.3133/tm11B10. DAS04 Beutner, 1968 Beutner, E.C., 1968, Structure and tectonics of the southern Lemhi Range, Idaho: State College, Pennsylvania State University, Ph.D. dissertation, 106 p., scale 1:31,680, https://catalog.libraries.psu.edu/catalog/13606765. DAS05 Davis, 1983 Davis, J.E., Jr., 1983, Geology of the Darlington quadrangle, south-central, Idaho: Hattiesburg, University of Southern Mississippi, M.S. thesis, 75 p., scale 1:24,000. DAS06 Dover, 1981 Dover, J.H., 1981, Geology of the Boulder-Pioneer Wilderness study area, Blaine and Custer Counties, Idaho: U.S. Geological Survey Bulletin 1497, p. 15-75, scale 1:62,500, https://doi.org/10.3133/b1497. DAS07 Dover, 1983 Dover, J.H., 1983, Geologic map and sections of the central Pioneer Mountains, Blaine and Custer Counties, central Idaho: U.S. Geological Survey Miscellaneous Investigations Series Map I-1319, scale 1:48,000, https://doi.org/10.3133/i1319. DAS08 Dover, 1969 Dover, J.H., 1969, Bedrock geology of the Pioneer Mountains, Blaine and Custer Counties, central Idaho: Idaho Bureau of Mines and Geology Pamphlet 142, 66 p., https://ngmdb.usgs.gov/Prodesc/proddesc_46203.htm. DAS09 Fisher and others, 1983 Fisher, F.S., May, G.D., McIntyre, D.H., and Johnson, F.L, 1983, Mineral resource potential, geology, and geochemistry of part of the White Cloud-Boulder Roadless Area, Custer County, Idaho: U.S. Geological Survey Miscellaneous Field Studies Map MF-1580, scale 1:62,500, https://doi.org/10.3133/mf1580. DAS10 Fisher and others, 1992 Fisher, F.S., McIntyre, D.H., and Johnson, K.M., 1992, Geologic map of the Challis 1 degree x 2 degree quadrangle, Idaho: U.S. Geological Survey Miscellaneous Investigations Series Map I-1819, scale 1:250,000, https://doi.org/10.3133/i1819. DAS11 Hait, 1965 Hait, M.H., 1965, Structure of the Gilmore area, Lemhi Range, Idaho: State College, Pennsylvania State University, Ph.D. dissertation, 134 p., scale 1:48,000, https://catalog.libraries.psu.edu/catalog/108545. DAS12 Haller, 1988 Haller, K.M., 1988, Segmentation of the Lemhi and Beaverhead faults, east-central Idaho, and Red Rock fault, southwest Montana, during the late Quaternary: Boulder, University of Colorado, M.S. thesis, 142 p., scale 1:250,000, https://libcat.colorado.edu/Record/b1811293. DAS13 Ingwell, 1980 Ingwell, T.H., 1980, Stratigraphy and structural geology of the Merriam Lake area, Lost River Range, Idaho: Los Angeles, University of California, M.S. thesis, 172 p., scale 1:10,000, https://usgs.primo.exlibrisgroup.com/permalink/01USGSL_INST/5ebtl1/alma991000047929703886. DAS14 Janecke, 1991 Janecke, S.U., 1991, Structural, geochronologic, and paleomagnetic investigations of Tertiary extension in east central Idaho: Salt Lake City, University of Utah, Ph.D. dissertation, 180 p., scale 1:100,000, https://digitalcommons.usu.edu/geology_facpub/136/. DAS15 Janecke and others, 1990 Janecke, S.U., Link, P.K, and Wilson, Eric, 1990, unpublished mapping, Geologic map of the Borah Peak Special Management Area, scale 1:125:000, https://www.idahogeology.org/product/t-92-5. DAS16 Susong, 1987 Susong, D.D., 1987, Structure of an earthquake rupture segment boundary in the Lost River fault zone, Idaho: Implications for rupture propagation during the 1983 Borah Peak earthquake: Salt Lake City, University of Utah, M.S. thesis, 52 p., scale 1:24,000, https://doi.org/10.1785/BSSA0800010057. DAS17 Wilson and others, 1990 Wilson, A.B., Janecke, S.U., Skipp, Betty, Kleinkopf, M.D., McCafferty, A.E., Barton, H.N., and Miller, M.S., 1990, Mineral Resources of the Borah Peak Wilderness Study Area, Custer County, Idaho: U.S. Geological Survey Bulletin 1718-E, 15 p., scale 1:24,000, https://doi.org/10.3133/b1718E. DAS18 Kuntz and others, 1994 Kuntz, M.A., Skipp, Betty, Lanphere, M.A., Scott, W.E., Pierce, K.L., Dalrymple, G.B., Morgan, L.A., Champion, D.E., Embree, G.F., Page, W.R., Smith, R.P., Hackett, W.R. and Rogers, D.W., 1994, Geologic map of the Idaho National Engineering Laboratory and adjoining areas, eastern Idaho: U.S. Geological Survey Miscellaneous Investigations Series Map I-2330, scale 1:100,000, https://doi.org/10.3133/i2330. DAS19 Kuntz and others, 1984 Kuntz, M.A., Skipp, Betty, Scott, W.E., and Page, W.R, 1984, Preliminary geologic map of the Idaho National Engineering Laboratory and adjoining areas, Idaho: U.S. Geological Survey Open-File Report 84-281, scale 1:100,000, https://doi.org/10.3133/ofr84281. DAS20 Mapel and others, 1965 Mapel, W.J., Read, W.H., and Smith, R.K., 1965, Geologic map and sections of the Doublespring quadrangle, Custer and Lemhi Counties, Idaho: U.S. Geological Survey Geologic Quadrangle Map GQ-464, scale 1:62,500, https://doi.org/10.3133/gq464. DAS21 Mapel and Shropshire, 1973 Mapel, W.J., and Shropshire, K.L., 1973, Preliminary geologic map and section of the Hawley Mountain quadrangle, Custer, Butte, and Lemhi Counties, Idaho: U.S. Geological Survey Miscellaneous Field Studies Map MF-546, scale 1:62,500, https://doi.org/10.3133/mf546. DAS22 McIntyre and Hobbs, 1987 McIntyre, D.H., and Hobbs, S.W., 1987, Geologic map of the Challis quadrangle, Custer and Lemhi Counties, Idaho: U.S. Geological Survey Geologic Quadrangle Map GQ-1599, scale l:62,500, https://doi.org/10.3133/gq1599. DAS23 Nelson and Ross, 1968 Nelson, W.H., and Ross, C.P., 1968, Geology of part of the Alder Creek mining district, Custer County, Idaho: U.S. Geological Survey Bulletin 1252-A, 30 p., scale 1:24,000, https://doi.org/10.3133/b1252A. DAS24 Nelson and Ross, 1969 Nelson, W.H., and Ross, C.P., 1969, Geologic map of the Mackay quadrangle, south-central Idaho: U.S. Geological Survey Miscellaneous Geologic Investigations Series Map 1-580, scale 1:125,000, https://doi.org/10.3133/i580. DAS25 Rember and Bennett, 1979 Rember, W.C., and Bennett, E.H., 1979, Geologic map of the Dubois quadrangle, Idaho: Idaho Bureau of Mines and Geology, Geologic Map Series (1 degree x 2 degree quadrangle), scale 1:250,000, https://ngmdb.usgs.gov/Prodesc/proddesc_46155.htm. DAS26 Rember and Bennett, 1979 Rember, W.C., and Bennett, E.H., 1979, Geologic map of the Idaho Falls quadrangle, Idaho: Idaho Bureau of Mines and Geology, Geologic Map Series (1 degree x 2 degree quadrangle), scale 1:250,000, https://ngmdb.usgs.gov/Prodesc/proddesc_46133.htm. DAS27 Rember and Bennett, 1979 Rember, W.C., and Bennett, E.H., 1979, Geologic map of the Hailey quadrangle, Idaho: Idaho Bureau of Mines and Geology, Geologic Map Series (1 degree x 2 degree quadrangle), scale 1:250,000, https://ngmdb.usgs.gov/Prodesc/proddesc_46130.htm. DAS28 Worl and others, 1991 Worl, R.G., Kiilsgaard, T.K., Bennett, E.H., Link, P.K., Lewis, R.S., Mitchell, V.E., Johnson, K.M., and Snyder, LD., 1991, Geologic map of the Hailey 1 degree x 2 degree quadrangle, Idaho: U.S. Geological Survey Open-File Report 91-340, scale 1:250,000, https://doi.org/10.3133/ofr91340. DAS29 Ross, 1947 Ross, C.P., 1947, Geology of the Borah Peak quadrangle, Idaho: Bulletin of the Geological Society of America, v. 58, no.12, p. 1085-1160, scale 1:125,000, https://doi.org/10.1130/0016-7606(1947)58[1085:GOTBPQ]2.0.CO;2. DAS30 Ross, 1963 Ross, C.P., 1963, Geology along U.S. Highway 93 in Idaho: Idaho Geological Survey Pamphlet 130, 98 p., 8 oversize sheets, https://www.idahogeology.org/product/p-130. DAS31 Ruppel, 1968 Ruppel, E.T., 1968, Geologic map of the Leadore quadrangle, Lemhi County, Idaho: U.S. Geological Survey Geologic Quadrangle Map GQ-733, scale 1:62,500, https://doi.org/10.3133/gq733. DAS32 Ruppel, 1980 Ruppel, E.T., 1980, Geologic map of the Patterson quadrangle, Lemhi County, Idaho: U.S. Geological Survey Geologic Quadrangle Map GQ-1529, scale 1:62,500, https://doi.org/10.3133/gq1529. DAS33 Ruppel and Lopez, 1981 Ruppel, E.T., and Lopez, D.A., 1981, Geologic map of the Gilmore quadrangle, Lemhi and Custer Counties, Idaho: U.S. Geological Survey Geologic Quadrangle Map GQ-1543, scale 1:62,500, https://doi.org/10.3133/gq1543. DAS34 Scott, 1982 Scott, W.E., 1982, Surficial geologic map of the eastern Snake River Plain and adjacent areas, 111 degrees to 115 degrees W., Idaho and Wyoming: U.S. Geological Survey Miscellaneous Investigations Series Map 1-1372, scale 1:250,000, https://doi.org/10.3133/i1372. DAS35 Skipp and Hait, 1977 Skipp, Betty, and Hait, M.H., Jr., 1977, Allochthons along the northeast margin of the Snake River Plain, Idaho: Wyoming Geological Association Guidebook, 29th Annual Field Conference, p. 499-515, scale about 1:510,000, https://ngmdb.usgs.gov/Prodesc/proddesc_93761.htm. DAS36 Skipp, 1984-88 Skipp, Betty, 1984-88, unpublished mapping, scale 1:24,000. DAS37 Skipp, 1974-76 Skipp, Betty, 1974-76, unpublished mapping, not continuous in area shown, scale 1:24,000. DAS38 Skipp, 1988 Skipp, Betty, 1988, Geologic map of Mackay 4 (Grouse) NE quadrangle, Butte and Custer Counties, Idaho: U.S. Geological Survey Open-File Report 88-423, scale 1:24,000, https://doi.org/10.3133/ofr88423. DAS39 Skipp, 1989 Skipp, Betty, 1989, Geologic map of Mackay 4 (Grouse) NW quadrangle, Butte and Custer Counties, Idaho: U.S. Geological Survey Open-File Report 89-142, scale 1:24,000, https://doi.org/10.3133/ofr89142. DAS40 Skipp and Bollmann, 1992 Skipp, Betty, and Bollmann, D.D., 1992, Geologic map of Blizzard Mountain North quadrangle, Butte and Custer Counties, Idaho: U.S. Geological Survey Open-File Report 92-280, scale 1:24,000, https://doi.org/10.3133/ofr92280. DAS41 Skipp and others, 1990 Skipp, Betty, Kuntz, M.A., and Morgan, LA., 1990, Geologic map of Mackay 4 (Grouse) SE quadrangle, Butte and Custer Counties, Idaho: U.S. Geological Survey Open-File Report 89-431, scale 1:24,000, https://doi.org/10.3133/ofr89431. DAS42 Skipp and Link, 1992 Skipp, Betty, and Link, P.K., 1992, Middle and Late Proterozoic rocks and Late Proterozoic tectonics in the southern Beaverhead Mountains, Idaho and Montana-A preliminary report: Geological Society of America Memoir 179, p. 141-154, https://doi.org/10.1130/MEM179-p141. DAS43 Skipp and others, 1979 Skipp, Betty, Sando, W.J., and Hall, W.E., 1979, Mississippian and Pennsylvanian (Carboniferous) Systems in the United States-Idaho: U.S. Geological Survey Professional Paper 1110, chap. AA, p. AA1-AA42, https://doi.org/10.3133/pp1110AL. DAS44 Soregaroli, 1961 Soregaroli, A.E., 1961, Geology of the McKim Creek Area, Lemhi County, Idaho: Moscow, University of Idaho, M.S. thesis, 53 p., scale 1:20,000. DataSourceID [DatSrcID] (ContactsAndFaults, DataSourcePolys, MapUnitPolys) Source(s) of data; alpha-numeric value used to link to DataSources table (foreign key). USGS NCGMP, 2020 Values are unique within this database. Multiple values concatenated. Examples of values: "DAS01" or "DAS15 | DAS16 | DAS17" DataSourcePolys_ID [DSrcPol_ID] (DataSourcePolys) Unique alpha-numeric value assigned to each feature (primary key). USGS NCGMP, 2020 Values are unique within this database. Example of values: "DSP01" Definition (GeoMaterialDict, Glossary) Plain-language definition. USGS NCGMP, 2020 Examples of values: "Silt- and sand-sized sediment, deposited by wind." or "A line representing the boundary of the mapping area." DefinitionSourceID [DefSrcID] (Glossary) Source of definition; alpha-numeric value used to link to DataSources table (foreign key). USGS NCGMP, 2020 DAS01 Wilson and Skipp, 1994 See DataSources_ID attribute information DAS02 Neuendorf and others, 2011 DataSources table DAS03 USGS NCGMP, 2020 See DataSources_ID attribute information Description [Descr] (ContactsAndFaults, DescriptionOfMapUnits) Free-format text description of map unit or the Type and certainty of a line feature. Commonly structured according to one or more accepted traditions (for example, lithology, thickness, color, weathering and outcrop characteristics, distinguishing features, genesis, age constraints). USGS NCGMP, 2020 Examples of values: "Silty and sandy limestone, calcareous sandstone and siltstone, quartzite, limestone, and conglomerate" or "contact, approximate" DescriptionOfMapUnits_ID [DMapUns_ID] (DescriptionOfMapUnits) Unique alpha-numeric value assigned to each feature (primary key). USGS NCGMP, 2020 Values are unique within this database. Example of values: "DMU01" DescriptionSourceID [DesSrcID] (DescriptionOfMapUnits) Source(s) of map unit description; alpha-numeric value used to link to DataSources table (foreign key). USGS NCGMP, 2020 Values are unique within this database. Multiple values concatenated. Examples of values: "DAS01" or "DAS01 | DAS06 | DAS08" ExistenceConfidence [ExiConf] (ContactsAndFaults) Confidence that feature exists. USGS NCGMP, 2020 certain Identity 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 NCGMP, 2020 unspecified Used for the boundary of a map where no confidence is specified. USGS NCGMP, 2020 FgdcIdentifier (RepurposedSymbols) Identifier for symbol from FGDC Digital Cartographic Standard for Geologic Map Symbolization. USGS NCGMP, 2020 Example of value: "02.04.01" FullName (DescriptionOfMapUnits) Name of map unit including identification of containing higher rank unit(s). USGS NCGMP, 2020 Examples of values: "White Knob Limestone" or "Jasperoid" GeoMaterial [GeoMat] (DescriptionOfMapUnits, GeoMaterialDict) Categorization of map unit based on lithologic and genetic character; term selected from NGMDB standard term list defined in Appendix 1 of GeMS documentation. USGS NCGMP, 2020 Examples of values: "--Intrusive igneous rock" or "----mostly Carbonate rock" GeoMaterialConfidence [GeoMatConf] (DescriptionOfMapUnits) Describes appropriateness of GeoMaterial term for describing the map unit. USGS NCGMP, 2020 High The 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. USGS NCGMP, 2020 Medium The term and definition generally characterize the overall lithology of the map unit, but there are one or more significant minor lithologies that are not adequately described by the selected term. USGS NCGMP, 2020 Glossary_ID [Glo_ID] (Glossary) Unique alpha-numeric value assigned to each feature (primary key). USGS NCGMP, 2020 Values are unique within this database. Example of value: "GLO01" HierarchyKey [HKey] (DescriptionOfMapUnits, GeoMaterialDict) String 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 is the same length to allow text-based sorting of table entries. USGS NCGMP, 2020 Examples of values: "04" or "18" IdentityConfidence [IdeConf] (ContactsAndFaults, MapUnitPolys) Confidence that feature is correctly identified. USGS NCGMP, 2020 certain Identity 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 NCGMP, 2020 unspecified Used for the boundary of a map where no confidence is specified. USGS NCGMP, 2020 IndentedName [IndNam] (GeoMaterialDict) Name with addition of leading spaces to help show rank within a hierarchical list. USGS NCGMP, 2020 Examples of values: "----Clastic sediment" or "----Fine-grained intrusive igneous rock" IsConcealed [IsCon] (ContactsAndFaults) Flag for contacts and faults covered by overlying map unit. USGS NCGMP, 2020 Y Yes USGS NCGMP, 2020 N No USGS NCGMP, 2020 Label (ContactsAndFaults, DescriptionOfMapUnits, MapUnitPolys) Plain-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). USGS NCGMP, 2020 Examples of values: "Dc" or "P*w" LocationConfidenceMeters [LocConfM] (ContactsAndFaults) Estimated half-width in meters of positional uncertainty envelope; position is relative to other features in database. USGS NCGMP, 2020 Positive real number. Value of -9 indicates value is unknown. MapUnit (DescriptionOfMapUnits, MapUnitPolys) Short plain-text identifier of the map unit. Used to link to DescriptionOfMapUnits table (foreign key). USGS NCGMP, 2020 Dc Carbonate rocks Wilson and Skipp, 1994 Dm Milligen Formation Wilson and Skipp, 1994 DOc Carbonate Rocks Wilson and Skipp, 1994 DOs Argillite and siltstone Wilson and Skipp, 1994 DSOc Carbonate rocks Wilson and Skipp, 1994 Mc Copper Basin Formation Wilson and Skipp, 1994 Mcb Carbonate bank units Wilson and Skipp, 1994 Mm McGowan Creek Formation Wilson and Skipp, 1994 Mw White Knob Limestone Wilson and Skipp, 1994 Oc Clayton Mine Quartzite Wilson and Skipp, 1994 Oe Ella Dolomite Wilson and Skipp, 1994 Ok Kinnikinic Quartzite Wilson and Skipp, 1994 Os Summerhouse Formation Wilson and Skipp, 1994 OZq Quartzite rocks Wilson and Skipp, 1994 PMc Mixed carbonate and siliciclastic rocks Wilson and Skipp, 1994 PPw Wood River Formation of the Sun Valley Group Wilson and Skipp, 1994 Qb Basalt Wilson and Skipp, 1994 Qs Surficial deposits Wilson and Skipp, 1994 QTs Surficial deposits Wilson and Skipp, 1994 Tc Conglomerate Wilson and Skipp, 1994 Te Extrusive rocks Wilson and Skipp, 1994 Ti Intrusive rocks Wilson and Skipp, 1994 Tj Jasperoid Wilson and Skipp, 1994 Ts Sedimentary rocks and tuff Wilson and Skipp, 1994 XAg Gneissic rocks Wilson and Skipp, 1994 Ym Metasedimentary rocks Wilson and Skipp, 1994 MapUnitPolys_ID [MUPs_ID] (MapUnitPolys) Unique alpha-numeric value assigned to each feature (primary key). USGS NCGMP, 2020 Values are unique within this database. Example of values: "MUP0001" Name (DescriptionOfMapUnits) Name of map unit, as shown in boldface in traditional description of map units. Identifies unit within its hierarchical context. USGS NCGMP, 2020 Example of values: "Ella Dolomite" NewExplanation (RepurposedSymbols) Explanation of usage of symbol in this map portrayal. USGS NCGMP, 2020 Example of value: "Rock slide--Outlines large sheets of mostly brecciated limestone emplaced by gravity. Includes detachment faults of Beutner (1968 - DAS04). Rectangles on displaced block" Notes (ContactsAndFaults, DataSources, DataSourcePolys, MapUnitPolys) Additional information specific to a particular feature or table entry. USGS NCGMP, 2020 Free text. Values of <null> or #null indicate no entry. OBJECTID [OID] [FID] (all) Object identification: an Esri default field that contains an integer value to uniquely identify a row in an attribute table. Esri sequential integer values, CSV files may be auto populated with -1 OldExplanation (RepurposedSymbols) Explanatory text from FGDC standard for meaning of symbol USGS NCGMP, 2020 Example of value: "Reverse fault--Identify and existence certain, location accurate. Rectangles on upthrown block" ParagraphStyle [ParaSty] (DescriptionOfMapUnits) Token that identifies formatting of paragraph(s) within traditional Description of Map Units that correspond to this table entry. USGS NCGMP, 2020 DMU1 Paragraph style for formatted description of a first-rank map unit within Description of Map Units table. Times New Roman, Regular, 10 pt, 12 pt leading, left justified, 66 pt left indent, -20 pt 1st line indent, 3 pt space before. USGS NCGMP, 2020 RepurposedSymbols_ID (RepurposedSymbols) Unique alpha-numeric value assigned to each feature (primary key). USGS NCGMP, 2020 Values are unique within this database. Example of values: “RPS1” Shape (ContactsAndFaults, DataSourcePolys, MapUnitPolys) An Esri default field that contains the geometry type (line, polygon). Esri Polygon Geometry type is a polygon. Esri Polyline Geometry type is a line. Esri Shape_Area (DataSourcePolys, MapUnitPolys) An Esri default field that contains the area of a polygon. The value is automatically generated in units of the feature class. Esri 16891.057543 11089609677.466534 square meters 0.000001 Shape_Length [Shp_Len] (ContactsAndFaults, DataSourcePolys, MapUnitPolys) An Esri default field that contains the length of a line or perimeter. The value is automatically generated in the units of the feature class. Esri 105.807904 2980550.269208 meters 0.000001 Source (DataSources) Plain-text short description that identifies the data source. USGS NCGMP, 2020 Example of values: "Dover, 1983" Symbol (ContactsAndFaults, DescriptionOfMapUnits, MapUnitPolys) Reference 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. USGS NCGMP, 2020 Numbers correspond to FGDC symbolization or a MapUnit. These values also correspond to the supplied Style file. Example of values: "01.01.01" Term (Glossary) Plain-language word for a concept. Values are unique within database as a whole. USGS NCGMP, 2020 Values correspond to attributes primarily used in the Type fields. Examples of values: "fault, normal" or "contact" Type (ContactsAndFaults) Classifier that specifies what kind of geologic feature is represented by a database element: that a certain line within feature class ContactsAndFaults is a contact, fault, or water boundary. USGS NCGMP, 2020 contact A plane or irregular surface between two types or ages of rock. Neuendorf and others, 2011 fault A discrete surface or zone of discrete surfaces separating two rock masses across which one mass has slid past the other. Neuendorf and others, 2011 fault, normal A fault in which the hanging wall has moved downward relative to the footwall. The angle of the fault is usually 45-90 degrees, and in most cases close to 60 degrees. Neuendorf and others, 2011 fault, normal, low-angle A fault in which the hanging wall has moved downward relative to the footwall. The angle of the fault is usually 45 degrees or less. Neuendorf and others, 2011 fault, strike-slip, left-lateral A fault on which the movement is parallel to the fault's strike and which the side opposite the observer has been displaced to the left. Neuendorf and others, 2011 fault, thrust A fault with a dip of 45 degrees or less over much of its extent, on which the hanging wall has moved upward relative to the footwall. Neuendorf and others, 2011 map boundary A line representing the boundary of the mapping area. Wilson and Skipp, 1994 rock slide Outlines large sheets of mostly brecciated limestone emplaced by gravity. Includes detachment faults of Beutner (1986 - DAS04). Rectangles on displaced block. Wilson and Skipp, 1994 | Beutner, 1968 URL (DataSources) Uniform Resource Locator (URL) or Digital Object Identifier (DOI), identifies a document on the World Wide Web. USGS NCGMP, 2020 Example of values: "https://ngmdb.usgs.gov/Prodesc/proddesc_10267.htm" The entity and attribute information provide 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 database conforms to the USGS Geologic Map Schema (GeMS) with the minor addition of the field “Description” to the ContactsAndFaults layer. A full description of the GeMS database structure can be accessed at https://doi.org/10.3133/tm11B10. U.S. Geological Survey - National Geologic Map Database (NGMDB) mailing address

12201 Sunrise Valley Dr., Mail Stop 908

Reston VA 20192 United States 1-888-ASK-USGS (1-888-275-8747) ngmdb@usgs.gov 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 Set Use a file extraction software such as WinZip, 7zip, Peazip https://doi.org/10.5066/P1UYWNRT None. No fees are applicable for obtaining the data set. 20250321 John D. Horton U.S. Geological Survey, ROCKY MOUNTAIN REGION Physical Scientist mailing address

Mail Stop 973, W 6th Ave Kipling St

Lakewood CO 80225 US 303-236-1222 jhorton@usgs.gov FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998