Cameron H. Olsen Jordan C. Craft John D. Horton 20250509 vector digital data U.S. Geological Survey data release DOI: 10.5066/P1W36ZBH Denver, Colorado U.S. Geological Survey Additional information about Originators: Olsen, C.H., https://orcid.org/0009-0006-3554-5002; Craft, J.C., https://orcid.org/0009-0008-0650-8645; Horton, J.D., https://orcid.org/0000-0003-2969-9073 Suggested citation: Olsen, C.H., Craft, J.C., and Horton, J.D., 2025, GIS data for geologic map of Precambrian rocks of the Sierra Madre, Carbon County, Wyoming, and Jackson and Routt Counties, Colorado: U.S. Geological Survey data release, https://doi.org/10.5066/P1W36ZBH. https://doi.org/10.5066/P1W36ZBH R.S. Houston P.J Graff 1994 publication U.S. Geological Survey Miscellaneous Investigations Series Map I-2452 Denver, CO U.S. Geological Survey Suggested citation: Houston, R.S., and Graff, P.J., 1994, Geologic map of Precambrian rocks of the Sierra Madre, Carbon County, Wyoming, and Jackson and Routt counties, Colorado: U.S. Geological Survey Miscellaneous Investigations Series Map I-2452, scale 1:50,000, https://doi.org/10.3133/i2452. https://doi.org/10.3133/i2452 This U.S. Geological Survey (USGS) data release provides a digital geospatial database for the Geologic map of Precambrian rocks of the Sierra Madre, Carbon County, Wyoming, and Jackson and Routt Counties, Colorado (Houston and Graff, 1994). Attribute tables and geospatial features (points, 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-2452. The 890,172-acre map area represents the geology at a publication scale of 1:50,000. References: Houston, R.S., and Graff, P.J., 1994, Geologic map of Precambrian rocks of the Sierra Madre, Carbon County, Wyoming, and Jackson and Routt counties, Colorado: U.S. Geological Survey Miscellaneous Investigations Series Map I-2452, scale 1:50,000, https://doi.org/10.3133/i2452. 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 Sierra Madre quadrangle, Carbon County, Wyoming and Jackson and Routt Counties, Colorado. 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. Sierra_Madre_I-2452.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 (Sierra_Madre_I-2452.gdb) contains the following elements: --GeologicMap: feature dataset (subdirectory) containing the following feature classes (GIS layers): ----CartographicLines: line layer (feature class) representing cross section lines. ----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. ----GeologicLines: line layer representing the locations of fold axes and breccia zones. ----MapUnitPolys: polygon layer representing the distribution of geologic map units. ----OrientationPoints: point layer representing orientations of bedding, foliation, lineation, minor folds and other features. ----OverlayPolys: polygon layer representing overlying materials that lie within map unit polygons, such as alteration zones. --DataSources: table that lists sources and (or) references used to derive spatial features (points, 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 (USGS NCGMP, 2020). --Glossary: table that defines and lists sources of terms used in the database. 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. 20250509 publication date Complete None planned -107.2507 -106.5004 41.3751 40.9998 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 NGCMP National Geologic Map Database NGMDB Geologic Map Schema GeMS USGS Metadata Identifier USGS:672267bed34e4f57573e8930 Geographic Names Information System (GNIS) Carbon County Jackson County Routt County Sierra Madre Common geographic areas Colorado CO Wyoming WY None. Please see 'Distribution Info' for details. These data are intended for use at approximately 1:50,000-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. 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 303-236-1921 303-236-3200 jhorton@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 National Geologic Map Database (NGMDB). Microsoft Windows 11 Enterprise, Version 10.0.22631 (Build 22631); Esri ArcGIS Pro 3.3.2 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 extracted and digitized 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. Point, line, and polygon features were digitized from the printed map (Houston and Graff, 1994) 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 point, line, and polygon features is dependent on the accuracy of the 1:50,000 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. Houston, R.S. Graff, P.J. 1994 publication U.S. Geological Survey Miscellaneous Investigations Series Map I-2452 Denver, CO U.S. Geological Survey Suggested citation: Houston, R.S., and Graff, P.J., 1994, Geologic map of Precambrian rocks of the Sierra Madre, Carbon County, Wyoming, and Jackson and Routt counties, Colorado: U.S. Geological Survey Miscellaneous Investigations Series Map I-2452, scale 1:50,000, https://doi.org/10.3133/i2452. https://doi.org/10.3133/i2452 Hardcopy 1994 publication date Houston and Graff, 1994 Original published geologic map. Georeferenced image from the National Geologic Map Database (NGMDB) accessed 2024 at: https://ngmdb.usgs.gov/Prodesc/proddesc_10283.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. Klaus K.E. Neuendorf James P. Mehl, Jr. Julia A. Jackson 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 prepared for the Federal Geographic Data Committee by the U.S. Geological Survey 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. The printed map was obtained from the National Geologic Map Database (NGMDB) and georeferenced by the USGS using evenly distributed control points. The data were captured by staff at East View Geospatial by heads-up digitizing of the georeferenced version of the Houston and Graff (1994) printed geologic map and saved as an Esri file geodatabase in GeMS format. Houston and Graff, 1994 2024 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 (Houston and Graff, 1994), USGS authors, 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. USGS NCGMP, 2020 Houston and Graff, 1994 Neuendorf and others, 2011 FGDC, 2006 2024 Vector Entity point 3026 G-polygon 2893 String 3459 Universal Transverse Mercator 13 0.9996 -105.0 0.0 500000.0 0.0 coordinate pair 0.6096 0.6096 metre North_American_Datum_1927 Clarke 1866 6378206.4 294.978698213898 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: "Early Proterozoic" or "Late Archean" 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 magenta or magenta scattered dots on white background" 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: "207,107,152" Azimuth (OrientationPoints) Strike 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. USGS NCGMP, 2020 0 359 degrees (angular measure) CartographicLines_ID [CarLin_ID] (CartographicLines) Unique alpha-numeric value assigned to each feature (primary key). USGS NCGMP, 2020 Values are unique within this database. Examples of values: "CAL1" 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 Houston and Graff, 1994 Houston, R.S., and Graff, P.J., 1994, Geologic map of Precambrian rocks of the Sierra Madre, Carbon County, Wyoming, and Jackson and Routt counties, Colorado: U.S. Geological Survey Miscellaneous Investigations Series Map I-2452, scale 1:50,000, https://doi.org/10.3133/i2452. DAS02 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. DAS03 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. DAS04 Blackstone, 1953 Blackstone, D.L. Jr., 1953, Notes on the tectonic map of a portion of southern Wyoming and northern Colorado, in Blackstone, D.L., and Van Gilder, H.R., eds., Wyoming Geological Association guidebook, eighth annual field conference, Laramie basin, Wyoming and North Park, Colorado: Wyoming Geological Association, p. 85, https://archives.datapages.com/data/wga/data/008/008001/pdfs/1.pdf. DAS05 Blackstone, 1987 Blackstone, D.L. Jr., 1987, Northern Medicine Bow Mountains, Wyoming: Revision of structural geology, northeast flank: Contributions to Geology, v. 25, no. 1, p. 1-9, https://pubs.geoscienceworld.org/uwyo/rmg/article-standard/25/1/1/87824/Northern-Medicine-Bow-Mountains-Wyoming-revision. DAS06 Condie and Shadel, 1984 Condie, K.G., and Shadel, G.A., 1984, An early Proterozoic volcanic arc succession on southeastern Wyoming: Canadian Journal of Earth Sciences, v. 21, p. 415-427, https://doi.org/10.1139/e84-045. DAS07 De Nault, 1967 De Nault, K.J., 1967, Geology and distribution of copper, lead, and zinc in streams and soil - Broadway Mine area, Carbon County, Wyoming: Laramie, University of Wyoming, M.S. thesis, 45 p, https://ngmdb.usgs.gov/Prodesc/proddesc_54269.htm. DAS08 Divis, 1976 Divis, A.F., 1976, Geology and geochemistry of the Sierra Madre Range, Wyoming: Colorado School of Mines Quarterly, v. 71, 127 p, https://ngmdb.usgs.gov/Prodesc/proddesc_89016.htm. DAS09 Duebendorfer and Houston, 1990 Duebendorfer, E.M., and Houston, R.S., 1990, Structural analysis of a ductile brittle Precambrian shear zone in the Sierra Madre, Wyoming; Western extension of the Cheyenne Belt: Precambrian Research, v. 48, p. 21-39, https://doi.org/10.1016/0301-9268(90)90055-U. DAS10 Ebbett, 1970 Ebbett, B.E., Jr., 1970, Geology of the metasedimentary rocks of the Sierra Madre, Wyoming: Geological Survey of Wyoming open-file map, scale 1:125,000. DAS11 Ferris, 1964 Ferris, C.S., Jr., 1964, Petrology and structure of the Precambrian rocks southeast of Encampment, Wyoming: Laramie, University of Wyoming, Ph.D. thesis, 74 p. DAS12 Flurkey, 1979 Flurkey, A.J., 1979, unpublished mapping. DAS13 Graff, 1978 Graff, P.J., 1978, Geology of the lower part of the Early Proterozoic Snowy Range Supergroup, Sierra Madre, Wyoming - with chapters on Proterozoic Regional tectonics and uraniferous quartz-pebble conglomerate: Laramie, University of Wyoming, Ph.D. thesis, 85 p. DAS14 Graff, 1987 Graff, P.J., 1987, unpublished mapping, scale 1:24,000. DAS15 Graff and Houston, 1978-90 Graff, P.J., and Houston, R.S., 1978-90, unpublished mapping. DAS16 Graff and Houston, 1987-88 Graff, P.J., and Houston, R.S., 1987-88, unpublished mapping. DAS17 Gwinner, 1979 Gwinner, Don, 1979, Structural setting of uranium-bearing quartz-pebble conglomerate of Precambrian age, northwest Sierra Madre, Carbon County, Wyoming: Laramie, University of Wyoming, M.S. thesis, 29 p. DAS18 Hills and Houston, 1979 Hills, F.A., and Houston R.S., 1979, Early Proterozoic tectonics of the central Rocky Mountains, North America: University of Wyoming, Contributions to Geology, v. 17, p. 89-109, https://pubs.geoscienceworld.org/uwyo/rmg/article/17/2/89/87751/Early-Proterozoic-tectonics-of-the-central-Rocky. DAS19 Houston, 1982-86 Houston, R.S., 1982-86, unpublished mapping, scale 1:24,000. DAS20 Houston, 1988-90 Houston, R.S., 1988-90, unpublished mapping, scale 1:24,000. DAS21 Houston, 1989 Houston, R.S., 1989, unpublished mapping. DAS22 Houston, 1993 Houston, R.S., 1993, Proterozoic geology of Wyoming, in Snoke, A.W., and Steidtmann, J.R., eds., Geology of Wyoming: Geological Survey of Wyoming Memoir 5. DAS23 Houston and Duebendorfer, 1988-90 Houston, R.S., and Duebendorfer, E.M., 1988-90, unpublished mapping. DAS24 Houston and Ebbett, 1977 Houston R.S., and Ebbett, B.E., Jr., 1977, Geologic map of the Sierra Madre and western Medicine Bow Mountains, southeastern Wyoming: U.S. Geological Survey Miscellaneous Field Studies Map MF-827, scale 1:125,000, https://doi.org/10.3133/mf827. DAS25 Houston and Gwinner, 1979-90 Houston, R.S. and Gwinner, Don, 1979-90, unpublished mapping. DAS26 Houston and others, 1992 Houston, R.S., Karlstrom, K.E., Graff, P.J., and Flurkey, A.J., 1992, New stratigraphic subdivisions and redefinition of subdivisions of Late Archean and Early Proterozoic metasedimentary and metavolcanic rocks of the Sierra Madre and Medicine Bow Mountains, southern Wyoming: U.S. Geological Survey Professional Paper 1520, 50 p, https://doi.org/10.3133/pp1520. DAS27 Houston and Schmidt, 1984-85 Houston, R.S., and Schmidt, T., 1984-85, unpublished mapping. DAS28 Houston and others, 1984 Houston, R.S., Schmidt, T., and Lane, M.E., 1984, Mineral Resource potential and geologic map of Huston Park Roadless area, Carbon County, Wyoming: U.S. Geological Survey Miscellaneous Field Studies Map MF-1637, scale 1:24,000, https://doi.org/10.3133/mf1637. DAS29 Houston and others, 1975 Houston, R.S., Schuster, J.E., and Ebbett, B.E., Jr., 1975, Preliminary report on the distribution of copper and platinum-group metals in mafic igneous rocks of the Sierra Madre, Wyoming: U.S. Geological Survey Open-File Report 75-85, 129 p, https://doi.org/10.3133/ofr7585. DAS30 Huang, 1970 Huang, Chi I., 1970, Cataclastic rocks in the Little Beaver Creek area, Carbon County, Wyoming: Laramie, University of Wyoming, M.S. thesis, 63 p. DAS31 Hughes, 1973 Hughes, M.A., 1973, A study of the Precambrian rocks of the Cow Creek area, Sierra Madre Mountains, Carbon County, Wyoming: Laramie, University of Wyoming, M.S. thesis, 43 p. DAS32 Karlstrom and Houston, 1984 Karlstrom, K.E., and Houston, R.S., 1984, The Cheyenne Belt, analysis of a Proterozoic suture in southern Wyoming: Precambrian Research, v. 25, p. 415-446, https://doi.org/10.1016/0301-9268(84)90012-3. DAS33 Karlstrom and others, 1981 Karlstrom, K.E., Houston, R.S., Flurkey, A.J., Coolidge, C.M., Kratochvil, A.L., and Sever, C.K., 1981, A summary of the geology and uranium potential of Precambrian conglomerates in southeastern Wyoming: U.S. Department of Energy Open-File Report DJBX-139-81, 541 p, https://doi.org/10.2172/6554700. DAS34 Kratochvil, 1981 Kratochvil, A.L., 1981, Geology of the uraniferous Deep Gulch Conglomerate (Late Archean), northwestern Sierra Madre, Wyoming: Laramie, University of Wyoming, M.S. thesis, 113 p. DAS35 Lackey, 1965 Lackey, L.L., 1965, Petrography of metavolcanic and igneous rocks of Precambrian age in the Huston Park area, Sierra Madre, Wyoming: Laramie, University of Wyoming, M.S. thesis, 18 p. DAS36 Merry, 1963 Merry, R.D., 1963, Precambrian geology, shear zones and associated mineral deposits of the Hog Park area, Carbon County, Wyoming: Laramie, University of Wyoming, M.S. thesis, 71 p. DAS37 Miller, 1971 Miller, W.R., 1971, Geology of the Indian Rocks area, Carbon County, Wyoming: Laramie, University of Wyoming, M.S. thesis, 40 p. DAS38 Montagne, 1955 Montagne, John, 1955, Cenozoic history of the Saratoga Valley area, Wyoming and Colorado: Laramie, University of Wyoming, Ph.D. thesis, 139 p. DAS39 Mueller, 1982 Mueller, R.E., 1982, The Cheyenne Belt, southeastern Wyoming: Part I, Descriptive geology and petrography: Laramie, University of Wyoming, M.S. thesis, 98 p. DAS40 Premo, 1982 Premo, W.R., 1982, U-Pb zircon geochronology of some Precambrian rocks in the Sierra Madre Range, Wyoming: University of Kansas, Ph.D. thesis, 106 p. DAS41 Premo and Van Schmus, 1989 Premo, W.R., and Van Schmus, W.R., 1989, Zircon geochronology of Precambrian rocks in southeastern Wyoming and northern Colorado: Geological Society of America Special Paper 235, p. 12-32, https://doi.org/10.1130/SPE235-p13. DAS42 Ridgley, 1971 Ridgley, N.H., 1971, Precambrian rocks in the Blackhall Mountain area, Carbon County, Wyoming: Laramie, University of Wyoming, M.S. thesis, 50 p. DAS43 Ritzma, 1949 Ritzma, H.R., 1949, Geology along the southwest flank of the Sierra Madre, Carbon County, Wyoming: Laramie, University of Wyoming, M.S. thesis, 27 p. DAS44 Schmidt, 1983 Schmidt, T.G., 1983, Precambrian metavolcanic rocks and associated volcanogenic mineral deposits of the Fletcher Park and Green Mountain areas, Sierra Madre, Wyoming: Laramie, University of Wyoming, M.S. thesis, 113 p. DAS45 Shaw and others, 1986 Shaw, H.F., Tracy, R.J., Niemeyer, S., and Colodner, Debra, 1986, Age and Nd-Sr systematics of the Spring Creek Lake body, Sierra Madre Mountains, Wyoming: Eos, v. 67, p. 1266. DAS46 Short, 1958 Short, B.L., 1958, A geologic and petrographic study of the Ferris-Haggerty mining area, Carbon County, Wyoming: Laramie, University of Wyoming, M.S. thesis, 130 p. DAS47 Snyder, 1980 Snyder, G.L., 1980, Geologic map of the northernmost Park Range and southernmost Sierra Madre, Jackson and Routt Counties, Colorado: U.S. Geological Survey Miscellaneous Investigations Series Map I-1113, scale 1:48,000, https://doi.org/10.3133/i1113. DAS48 Snyder, 1984 Snyder, G.L., 1984, in written communication. DAS49 Spencer, 1904 Spencer, A.C., 1904, Copper deposits of the Encampment district, Wyoming: U.S. Geological Survey Professional Paper 25, 107 p, https://doi.org/10.3133/pp25. DAS50 Swift, 1982 Swift, P.N., 1982, Precambrian metavolcanic rocks and associated volcanogenic mineral deposits of the southwestern Sierra Madre, Wyoming: Laramie, University of Wyoming, M.S. thesis, 61 p. DAS51 Tweto, 1979 Tweto, Ogden, 1979, Rio Grande Rift in Colorado, in Reicker, R.E., ed., International symposium on the Rio Grande Rift, Santa Fe, N. Mex.: American Geophysical Union Inter-Union Commission on Geodynamics, p. 33-56, https://doi.org/10.1029/SP014p0033. DAS52 Ware, 1982 Ware, D.C., 1982, Amphibolite complex of the Blackhall Mountain area, southeastern Sierra Madre, Wyoming: Laramie, University of Wyoming, M.S. thesis, 71 p. DAS53 Wied, 1960 Wied, O.J., 1960, Geology of the Encampment area, Carbon County, Wyoming: Laramie, University of Wyoming, M.S. thesis, 52 p. DataSourceID [DatSrcID] (CartographicLines, ContactsAndFaults, DataSourcePolys, GeologicLines, MapUnitPolys, OverlayPolys) Source of data; alpha-numeric value used to link to DataSources table (foreign key). USGS NCGMP, 2020 DAS01 Houston and Graff, 1994 See DataSources_ID attribute information DAS07 De Nault, 1967 See DataSources_ID attribute information DAS10 Ebbett, 1970 See DataSources_ID attribute information DAS11 Ferris, 1964 See DataSources_ID attribute information DAS13 Graff, 1978 See DataSources_ID attribute information DAS15 Graff and Houston, 1978-90 See DataSources_ID attribute information DAS16 Graff and Houston, 1987-88 See DataSources_ID attribute information DAS17 Gwinner, 1979 See DataSources_ID attribute information DAS20 Houston, 1988-90 See DataSources_ID attribute information DAS21 Houston, 1989 See DataSources_ID attribute information DAS23 Houston and Duebendorfer, 1988-90 See DataSources_ID attribute information DAS25 Houston and Gwinner, 1979-90 See DataSources_ID attribute information DAS27 Houston and Schmidt, 1984-85 See DataSources_ID attribute information DAS30 Huang, 1970 See DataSources_ID attribute information DAS31 Hughes, 1973 See DataSources_ID attribute information DAS35 Lackey, 1965 See DataSources_ID attribute information DAS36 Merry, 1963 See DataSources_ID attribute information DAS37 Miller, 1971 See DataSources_ID attribute information DAS42 Ridgley, 1971 See DataSources_ID attribute information DAS44 Schmidt, 1983 See DataSources_ID attribute information DAS46 Short, 1958 See DataSources_ID attribute information DAS50 Swift, 1982 See DataSources_ID attribute information DAS52 Ware, 1982 See DataSources_ID attribute information DAS53 Wied, 1960 See DataSources_ID attribute information 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 Example of values: "The arrangement of sedimentary rocks in beds or layers of varying thickness and character; the general physical and structural character or pattern of the beds and their contacts within a rock mass, such as cross-bedding and graded bedding; a collective term denoting the existence of beds. Also, the structure so produced." DefinitionSourceID [DefSrcID] (Glossary) Source of definition; alpha-numeric value used to link to DataSources table (foreign key). USGS NCGMP, 2020 DAS01 Houston and Graff, 1994 See DataSources_ID attribute information DAS02 USGS NCGMP, 2020 See DataSources_ID attribute information DAS03 Neuendorf and others, 2011 See DataSources_ID attribute information Description [Descr] (ContactsAndFaults, DescriptionOfMapUnits, GeologicLines) 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: "A succession of interbedded mafic and felsic metavolcanic rocks and metasedimentary rocks" or "contact, certain" 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. Example of values: "DAS01" or "DAS01 | DAS52 | DAS41 | DAS45" ExistenceConfidence [ExiConf] (ContactsAndFaults, GeologicLines) 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 questionable Identity 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 NCGMP, 2020 unspecified Used for the boundary of a map where no confidence is specified. USGS NCGMP, 2020 FullName (DescriptionOfMapUnits) Name of map unit including identification of containing higher rank unit(s). USGS NCGMP, 2020 Examples of values: "Sierra Madre Granite" or "Mafic metavolcanic rocks of the Green Mountain Formation" GeologicLines_ID [GeoLin_ID] (GeologicLines) Unique alpha-numeric value assigned to each feature (primary key). USGS NCGMP, 2020 Values are unique within this database. Example of values: "GEL001" GeoMaterial [GeoMat] (DescriptionOfMapUnits, GeoMaterialDict) Categorization of map unit based on lithologic and genetic character; term selected from NGMDB standard term list defined in Appendix A of GeMS documentation. USGS NCGMP, 2020 Examples of values: "------Ultramafic Intrusive igneous rock" or "----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: "01" or "06-05" IdentityConfidence [IdeConf] (ContactsAndFaults, GeologicLines, MapUnitPolys, OrientationPoints, OverlayPolys) 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 questionable Identity 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 NCGMP, 2020 unspecified Used for the boundary of a map where no confidence is specified. USGS NCGMP, 2020 Inclination [Inc] (OrientationPoints) Dip or plunge, measured in degrees down from horizontal. Values of -9 indicate value unknown. USGS NCGMP, 2020 -9 90 degrees (angular measure) IndentedName [IndName] (GeoMaterialDict) Name with addition of leading spaces to help show rank within a hierarchical list. USGS NCGMP, 2020 Examples of values: "------Sand and gravel of unspecified origin" or "--Water or Ice" IsConcealed [IsCon] (ContactsAndFaults, GeologicLines) Flag for contacts and faults covered by overlying map unit. USGS NCGMP, 2020 Y Yes USGS NCGMP, 2020 N No USGS NCGMP, 2020 Label (CartographicLines, ContactsAndFaults, DescriptionOfMapUnits, GeologicLines, MapUnitPolys, OrientationPoints, OverlayPolys) 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: "Xgb" or "16M" LocationConfidenceMeters [LocConfM] (ContactsAndFaults, GeologicLines, OrientationPoints) 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. LocationSourceID [LocSrcID] (OrientationPoints) Source of location; alpha-numeric value used to link to DataSources table (foreign key). USGS NCGMP, 2020 DAS01 Houston and Graff, 1994 See DataSources_ID attribute information MapUnit (DescriptionOfMapUnits, MapUnitPolys, OrientationPoints) Short plain-text identifier of the map unit. Used to link to DescriptionOfMapUnits table (foreign key). USGS NCGMP, 2020 shear zone shear zone Houston and Graff, 1994 unconsolidated surficial deposits and consolidated sedimentary rocks unconsolidated surficial deposits and consolidated sedimentary rocks Houston and Graff, 1994 Wbp Bridger Peak Quartzite Houston and Graff, 1994 Wg Red-pink orthogneiss Houston and Graff, 1994 Wgn Quartzo-feldspathic gneiss Houston and Graff, 1994 Wj Jack Creek Quartzite Houston and Graff, 1994 Wp Kyanite pegmatite Houston and Graff, 1994 Ws Silver Lake Metavolcanics Houston and Graff, 1994 Wsl Spring Lake Granodiorite Houston and Graff, 1994 Wv Vulcan Mountain Metavolcanics Houston and Graff, 1994 Xb Bottle Creek Formation Houston and Graff, 1994 Xbc Chemical metasedimentary rocks Houston and Graff, 1994 Xbf Felsic gneiss Houston and Graff, 1994 Xbm Mafic metavolcanic rocks Houston and Graff, 1994 Xbmg Mixed gneiss Houston and Graff, 1994 Xbs Metasedimentary rocks Houston and Graff, 1994 Xc Cascade Quartzite Houston and Graff, 1994 Xcp Copperton Formation Houston and Graff, 1994 Xd Mafic intrusive rocks (diabase) Houston and Graff, 1994 Xer Encampment River Granodiorite Houston and Graff, 1994 Xgb Mafic intrusive rocks (gabbro) Houston and Graff, 1994 Xge Gabbro of Elkhorn Mountain Houston and Graff, 1994 Xgmf Felsic metavolcanic rocks of the Green Mountain Formation Houston and Graff, 1994 Xgmm Mafic metavolcanic rocks of the Green Mountain Formation Houston and Graff, 1994 Xgms Chemical metasedimentary rocks of the Green Mountain Formation Houston and Graff, 1994 Xgmw Metagraywacke of the Green Mountain Formation Houston and Graff, 1994 Xgmx Mixed metavolcanic and metasedimentary succession rocks of the Green Mountain Formation Houston and Graff, 1994 Xm Mafic intrusive rocks Houston and Graff, 1994 Xmg Magnolia Formation Houston and Graff, 1994 Xp Pegmatite Houston and Graff, 1994 Xsg Sillimanite gneiss Houston and Graff, 1994 Xsh Slaughterhouse Formation Houston and Graff, 1994 Xsm Sierra Madre Granite Houston and Graff, 1994 Xsp Singer Peak Formation Houston and Graff, 1994 Xum Mafic intrusive rocks (ultramafic) Houston and Graff, 1994 XWan Mafic intrusive rocks (anorthositic) Houston and Graff, 1994 XWd Mafic intrusive rocks (diabasic) Houston and Graff, 1994 XWgb Mafic intrusive rocks (gabbroic) Houston and Graff, 1994 XWm Mafic intrusive rocks Houston and Graff, 1994 Xwqm White quartz monzonite Houston and Graff, 1994 XWum Mafic intrusive rocks (ultramafic) Houston and Graff, 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: "Cascade Quartzite" Notes (CartographicLines, ContactsAndFaults, DataSources, DataSourcePolys, GeologicLines, MapUnitPolys, OrientationPoints, OverlayPolys) Additional information specific to a particular feature or table entry. USGS NCGMP, 2020 Free text. Example of values: "minor fold associated with multiple foliation points" or "M indicates mineral orientation or biotite streaks". 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 OrientationConfidenceDegrees [OriConDeg] (OrientationPoints) Estimated angular precision of combined azimuth AND inclination measurements, in degrees. USGS NCGMP, 2020 5 5 degrees USGS authors OrientationPoints_ID [OriPoi_ID] (OrientationPoints) Unique alpha-numeric value assigned to each feature (primary key). USGS NCGMP, 2020 Values are unique within this database. Example of values: "ORP0001" OrientationSourceID [OriSrcID] (OrientationPoints) Source of orientation data; alpha-numeric value used to link to DataSources table (foreign key). USGS NCGMP, 2020 DAS01 Houston and Graff, 1994 See DataSources_ID attribute information OverlayPolys_ID [OVP_ID] (OverlayPolys) Unique alpha-numeric value assigned to each feature (primary key). USGS NCGMP, 2020 Values are unique within this database. Example of values: "OVP01" ParagraphStyle [ParySty] (DescriptionOfMapUnits) Token that identifies formatting of paragraph(s) within traditional Description of Map Units that correspond to this table entry. USGS NCGMP, 2020 DMU-Heading2 Heading style for second-order headings within Description of Map Units table. Such headings are subsidiary to the primary heading "Description of Map Units". Times New Roman, Bold, 10 pt, 12 pt leading, all caps, centered, 12 pt space before. USGS NCGMP, 2020 DMU Unit 1 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 DMU Unit 2 Paragraph style for formatted description of a second-order map unit within Description of Map Units table. Such map units are subsidiary to (commonly subdivisions of) first-order map units. Times New Roman, Regular, 10 pt, 12 pt leading, left justified, 66 pt left indent, -10 pt 1st line indent, 3 pt space before. USGS NCGMP, 2020 PlotAtScale [PlotAtSca] (OrientationPoints) Scale at which an observation should be plotted. Value is scale of the map. USGS NCGMP, 2020 Positive real number. Using original map scale of 50,000. Shape (CartographicLines, ContactsAndFaults, DataSourcePolys, GeologicLines, MapUnitPolys, OrientationPoints, OverlayPolys) An Esri default field that contains the geometry type (point, line, polygon). Esri Point Geometry type is a point. Esri Polygon Geometry type is a polygon. Esri Polyline Geometry type is a line. Esri Shape_Area (DataSourcePolys, MapUnitPolys, OverlayPolys) An Esri default field that contains the area of a polygon. The value is automatically generated in units of the feature class. Esri 2181.00496 662039361.611554 square meters 0.000001 Shape_Length [Shp_Len] (CartographicLines, ContactsAndFaults, DataSourcePolys, GeologicLines, MapUnitPolys, OverlayPolys) 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 43.738823 347451.534578 meters 0.000001 Source (DataSources) Plain-text short description that identifies the data source. USGS NCGMP, 2020 Example of values: "Houston and Graff, 1994" StationsID (OrientationPoints) Unique alpha-numeric value used to link to Stations point feature class (foreign key) (not used in this geodatabase). USGS NCGMP, 2020 All values NULL. Symbol (CartographicLines, ContactsAndFaults, DescriptionOfMapUnits, GeologicLines, MapUnitPolys, OrientationPoints, OverlayPolys) 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" or "cataclastic fault zone" 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: "anticline, overturned" or "crossbedding" Type (CartographicLines, ContactsAndFaults, GeologicLines, OrientationPoints, OverlayPolys) 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, or thrust fault, or water boundary. USGS NCGMP, 2020 anticline, minor A minor anticline fold represented as a point feature. Houston and Graff, 1994 anticline, overturned A fold, generally convex upward, whose core contains the stratigraphically older rocks that has tilted beyond the perpendicular. Neuendorf and others, 2011 anticline, plunging An anticline in which the hinge line is inclined to the horizontal. Neuendorf and others, 2011 antiform Any convex-upward, concave downward fold. The term is usually used when the folded layers do not possess a stratigraphic order, when the stratigraphic order of the folded layers is not known, or when the fold core also contains the stratigraphically younger rock. Neuendorf and others, 2011 bedding The arrangement of sedimentary rocks in beds or layers of varying thickness and character; the general physical and structural character or pattern of the beds and their contacts within a rock mass, such as cross-bedding and graded bedding; a collective term denoting the existence of beds. Also, the structure so produced. Neuendorf and others, 2011 bedding, horizontal Bedding that is horizontal to the principal surface of deposition and thus has a dip of zero. Neuendorf and others, 2011 bedding, overturned Bedding inclined to the principal surface of deposition that has tilted beyond the perpendicular. Sequence of strata thus appears reversed. Neuendorf and others, 2011 bedding, vertical Bedding inclined to the principal surface of deposition that has tilted vertical (90 degrees). Neuendorf and others, 2011 breccia zone Strike and dip of silicified breccia-zone and cataclasite surface east of Baker and Lemhi, and west of Tendoy, Idaho. Houston and Graff, 1994 cataclastic fault zone Overlay polygon for fault zones characterized by cataclasite; a fine-grained, cohesive cataclastic rock , normally lacking a penetrative foliation or microfabric. A cataclasite forms by pervasive fracturing, milling, crushing, and grinding by brittle deformation, typically under conditions of elevated pressure, sufficient to keep the material from losing coherence and becoming a gouge. Houston and Graff, 1994 | Neuendorf and others, 2011 channel Represented as a point feature in both (a) volcanic and (b) metasedimentary rocks. Defined as either; (a) a narrow, sinuous flow channel, commonly formed in lava flows OR (b) a linear current mark, larger than a groove, produced on a sedimentary surface, parallel to the current, and often preserved as a channel cast. Arrow points to top of bed. Houston and Graff, 1994 | Neuendorf and others, 2011 contact A plane or irregular surface between two types or ages of rock. Neuendorf and others, 2011 contact, internal Used where contacts are included within the same geologic map unit. Houston and Graff, 1994 cross section A line representing a plane from which vertical geologic sections are drawn at right angles to the longer axis of a geologic feature in the cross section diagrams of the map. Neuendorf and others, 2011 crossbedding Cross-stratification in which the cross-beds are more than 1 cm in thickness. Probably most cross-stratification is produced by the migration of bed forms, particularly ripples (which form small-scale cross-lamination) and dunes (which form medium- to large-scale cross-lamination or crossbedding). Arrow points to top of bed. Houston and Graff, 1994 | Neuendorf and others, 2011 fault, igneous, Precambrian age A fault occupied by igneous intrusive rocks. Precambrian age: a commonly used term to designate all rocks older than the Cambrian Period of the Standard Global Chronostratigraphic Scale. It includes the Archean and Proterozoic eons and represents 90 percent of geologic time. Houston and Graff, 1994 | Neuendorf and others, 2011 fault, normal, Tertiary age 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. Tertiary age: a term used for the period of time between the end of the late Cretaceous and beginning of the Quaternary, between 66 and 2.6 Ma, that marks the beginning of the Cenozoic Era. Houston and Graff, 1994 | Neuendorf and others, 2011 fault, Precambrian age A discrete surface or zone of discrete surfaces separating two rock masses across which one mass has slid past the other. Precambrian age: a commonly used term to designate all rocks older than the Cambrian Period of the Standard Global Chronostratigraphic Scale. It includes the Archean and Proterozoic eons and represents 90 percent of geologic time. Houston and Graff, 1994 | Neuendorf and others, 2011 fault, Precambrian and Laramide age A discrete surface or zone of discrete surfaces separating two rock masses across which one mass has slid past the other. Precambrian age: a commonly used term to designate all rocks older than the Cambrian Period of the Standard Global Chronostratigraphic Scale. It includes the Archean and Proterozoic eons and represents 90 percent of geologic time. Laramide age: a time of deformation, typically recorded in the eastern Rocky Mountains of the United States, whose several phases extended from late Cretaceous until the end of the Paleocene (approximately 80 to 50 Ma). Houston and Graff, 1994 | Neuendorf and others, 2011 fault, Precambrian, Laramide, and Tertiary age A discrete surface or zone of discrete surfaces separating two rock masses across which one mass has slid past the other. Precambrian age: a commonly used term to designate all rocks older than the Cambrian Period of the Standard Global Chronostratigraphic Scale. It includes the Archean and Proterozoic eons and represents 90 percent of geologic time. Laramide age: a time of deformation, typically recorded in the eastern Rocky Mountains of the United States, whose several phases extended from late Cretaceous until the end of the Paleocene (approximately 80 to 50 Ma). Tertiary age: a term used for the period of time between the end of the late Cretaceous and beginning of the Quaternary, between 66 and 2.6 Ma, that marks the beginning of the Cenozoic Era. Houston and Graff, 1994 | Neuendorf and others, 2011 fault, strike-slip, right-lateral, Precambrian age 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 right. Precambrian age: a commonly used term to designate all rocks older than the Cambrian Period of the Standard Global Chronostratigraphic Scale. It includes the Archean and Proterozoic eons and represents 90 percent of geologic time. Houston and Graff, 1994 | Neuendorf and others, 2011 fault, strike-slip, right-lateral, Precambrian and Laramide age 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 right. Precambrian age: a commonly used term to designate all rocks older than the Cambrian Period of the Standard Global Chronostratigraphic Scale. It includes the Archean and Proterozoic eons and represents 90 percent of geologic time. Laramide age: a time of deformation, typically recorded in the eastern Rocky Mountains of the United States, whose several phases extended from late Cretaceous until the end of the Paleocene (approximately 80 to 50 Ma). Houston and Graff, 1994 | Neuendorf and others, 2011 fault, Tertiary age A discrete surface or zone of discrete surfaces separating two rock masses across which one mass has slid past the other. Tertiary age: the time during which these rocks were faulted, between 65 and 1.75 Ma. Houston and Graff, 1994 | Neuendorf and others, 2011 fault, thrust, igneous, Precambrian age A thrust fault occupied by igneous intrusive rocks. Precambrian age: a commonly used term to designate all rocks older than the Cambrian Period of the Standard Global Chronostratigraphic Scale. It includes the Archean and Proterozoic eons and represents 90 percent of geologic time. Houston and Graff, 1994 | Neuendorf and others, 2011 fault, thrust, Precambrian age 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. Precambrian age: a commonly used term to designate all rocks older than the Cambrian Period of the Standard Global Chronostratigraphic Scale. It includes the Archean and Proterozoic eons and represents 90 percent of geologic time. Houston and Graff, 1994 | Neuendorf and others, 2011 fault, thrust, Precambrian and Laramide age 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. Precambrian age: a commonly used term to designate all rocks older than the Cambrian Period of the Standard Global Chronostratigraphic Scale. It includes the Archean and Proterozoic eons and represents 90 percent of geologic time. Laramide age: a time of deformation, typically recorded in the eastern Rocky Mountains of the United States, whose several phases extended from late Cretaceous until the end of the Paleocene (approximately 80 to 50 Ma). Houston and Graff, 1994 | Neuendorf and others, 2011 foliation A general term for a planar arrangement of textural or structural features in any type of rock, esp. the locally planar fabric in a rock defined by a fissility, a preferred orientation of crystal planes in mineral grains, a preferred orientation of inequant grain shapes, or from compositional banding. In igneous rocks, planar parallelism of flaky or tabular minerals and mineral aggregates, slabby xenoliths, or flattened vesicles as well as compositional layering. In metamorphic rocks, planar parallelism of flaky minerals and compositional layering. Neuendorf and others, 2011 foliation, folded Inclined crinkled or deformed foliation - showing approximate strike and dip - that was taken in a limb of a minor fold. USGS NCGMP, 2020 foliation, folded, vertical Vertical (90 degrees) crinkled or deformed foliation that was taken in a limb of a minor fold. USGS NCGMP, 2020 | Neuendorf and others, 2011 foliation, vertical Foliation that has tilted vertical (90 degrees). Neuendorf and others, 2011 graded bedding A type of bedding in which each layer displays a gradual and progressive change in particle size, usually from coarse at the base of the bed to fine at the top. It may form under conditions in which the velocity of the prevailing current declined in a gradual manner, as by deposition from a single short-lived turbidity current. Arrow points to top of bed. Houston and Graff, 1994 | Neuendorf and others, 2011 lineation A general, nongeneric term for a locally linear structure or fabric in a rock. Symbol without a letter indicates that cause of lineation is uncertain, e.g. flow lines, scratches, striae, slickensides or slickenfibers on a single surface; linear arrangements of components in sediments; or axes of folds. Lineation in metamorphic rocks includes aligned rod-shaped and/or elongate minerals grains, and the lines of intersection between bedding and cleavage or any two sets of oriented surfaces. Letter "C" indicates crenulation lineation. Letter "M" indicates mineral orientation or biotite streaks. Houston and Graff, 1994 | Neuendorf and others, 2011 lineation, crenulation A lineation defined by the hinges of small folds (crenulations), indicated by the letter "C" on the printed map. Houston and Graff, 1994 | Neuendorf and others, 2011 lineation, mineral A linear fabric element defined by the preferred orientation of inequant mineral grains, elongated grain aggregates, or biotite streaks, indicated by the letter "M" on the printed map. Houston and Graff, 1994 | Neuendorf and others, 2011 map boundary A line representing the boundary of the mapping area. Houston and Graff, 1994 minor fold A small-scale fold that is represented as a point feature. Neuendorf and others, 2011 offset, normal, Tertiary age Vertical displacement of geologic material that occurs along a normal fault line. Tertiary age: a term used for the period of time between the end of the late Cretaceous and beginning of the Quaternary, between 66 and 2.6 Ma, that marks the beginning of the Cenozoic Era. Houston and Graff, 1994 offset, strike-slip, left-lateral, Precambrian age Horizontal, left-moving displacement of geologic material that occurs along a strike-slip fault line. Precambrian age: a commonly used term to designate all rocks older than the Cambrian Period of the Standard Global Chronostratigraphic Scale. It includes the Archean and Proterozoic eons and represents 90 percent of geologic time. Houston and Graff, 1994 offset, strike-slip, right-lateral, Precambrian and Laramide age Horizontal, right-moving displacement of geologic material that occurs along a strike-slip fault line. Precambrian age: a commonly used term to designate all rocks older than the Cambrian Period of the Standard Global Chronostratigraphic Scale. It includes the Archean and Proterozoic eons and represents 90 percent of geologic time. Laramide age: a time of deformation, typically recorded in the eastern Rocky Mountains of the United States, whose several phases extended from late Cretaceous until the end of the Paleocene (approximately 80 to 50 Ma). Houston and Graff, 1994 pillow structure A structure, observed in certain extrusive igneous rocks, that is characterized by discontinuous bun-shaped masses ranging in size from a few centimeters to a meter or more in greatest dimension (commonly between 30 and 60 cm). The pillows are close-fitting, the concavities of one matching the convexities of another. Grain size within pillows tends to decrease toward the exterior. Pillow structures are considered to be the result of subaqueous extrusion, as evidenced by their association with sedimentary deposits, usually of deep-sea origin. Arrow points to top of bed. Houston and Graff, 1994 recumbent fold An overturned fold, the axial surface of which is horizontal or nearly so. Neuendorf and others, 2011 scratch boundary Used where contacts were omitted and not mapped. Houston and Graff, 1994 shear zone A parallel-sided zone of localized shearing displacement, which may be recognized by sigmoidal mineral-filled veins, locally well-developed cleavage or foliation, wholesale grain-size reduction or mylonitization, or some combination of these features. Neuendorf and others, 2011 syncline A fold of which the core contains the stratigraphically younger rocks; it is generally concave upward. Neuendorf and others, 2011 syncline, minor A minor syncline fold represented as a point feature. Houston and Graff, 1994 syncline, overturned A syncline that has been tilted beyond the perpendicular. Sequence of strata thus appears reversed. Neuendorf and others, 2011 syncline, plunging A syncline in which the hinge line is inclined to the horizontal. Neuendorf and others, 2011 Xp, abundant Overlay polygon for areas in which unit Xp (pegmatite) is abundant and has not been mapped as separate bodies. Houston and Graff, 1994 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://doi.org/10.3133/tm11B10" 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 and GeologicLines layers. 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/P1W36ZBH None. No fees are applicable for obtaining the data set. 20250509 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 303-236-1921 jhorton@usgs.gov FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998