Sara C. Gonzalez Hunter J. Broeder 20260327 vector digital data U.S. Geological Survey data release DOI: 10.5066/P1ZPHKVM Denver, Colorado U.S. Geological Survey Additional information about Originators: Gonzalez, S.C., https://orcid.org/0009-0007-0461-5773; Broeder, H.J., https://orcid.org/0009-0009-7827-7345 Suggested citation: Gonzalez, S.C., and Broeder, H.J., 2026, GIS data for geologic map of the northernmost Park Range and southernmost Sierra Madre, Jackson and Routt Counties, Colorado: U.S. Geological Survey data release, https://doi.org/10.5066/P1ZPHKVM. https://doi.org/10.5066/P1ZPHKVM George L. Snyder 1980 publication U.S. Geological Survey Miscellaneous Investigations Series Map I-1113 Reston, Virginia U.S. Geological Survey Suggested citation: 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. https://doi.org/10.3133/i1113 This U.S. Geological Survey (USGS) data release provides a digital geospatial database for the geologic map of the northernmost Park Range and southernmost Sierra Madre, Jackson and Routt Counties, Colorado (Snyder, 1980). 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 the USGS Miscellaneous Investigations Series Map I-1113. The 417,310-acre map area represents the geology at a publication scale of 1:48,000. References: 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. 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 northernmost Park Range and southernmost Sierra Madre, 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. ParkRangeNorth_I-1113.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 (ParkRangeNorth_I-1113.gdb) contains the following elements: --GeologicMap: feature dataset (subdirectory) containing the following feature classes (GIS layers): ----CartographicLines: line layer representing cross section lines and a wilderness boundary. ----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. ----FossilPoints: point layer representing the locations of fossils and/or radiometric dating. ----GenericPoints: point layer representing the locations of pods, manmade features, and other point features. ----GeologicLines: line layer representing the locations of fold axes, recessional moraine ridges, and other linear features. ----MapUnitPolys: polygon layer representing the distribution of geologic map units. ----OrientationPoints: point layer representing structure measurements, such as orientations of bedding, foliation, and lineation. --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. --RepurposedSymbols: table that lists standard FGDC geologic map symbols that have been repurposed. 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. 20260327 publication date Complete None planned -107.0766 -106.3389 41.0049 40.6788 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:6840ad8ad4be022b9cea5e4a Geographic Names Information System (GNIS) Jackson County Routt County Park Range Common geographic areas Colorado CO Mount Zirkel Wilderness None. Please see 'Distribution Info' for details. These data are intended for use at approximately 1:48,000-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. Sara C. Gonzalez 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 scgonzalez@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 23H2 (Build 22631.5335); 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. Point, line, and polygon features were hand digitized from the I-1113 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 point, line, and polygon features is dependent on the accuracy of the 1:48,000 scale source map. Map publication techniques employed in 1980 may have used early computing technologies, resulting 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. George L. Snyder 1980 publication U.S. Geological Survey Miscellaneous Investigations Series Map I-1113 Reston, Virginia U.S. Geological Survey Suggested citation: 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. https://doi.org/10.3133/i1113 Hardcopy 1980 publication date Snyder, 1980 Original published geologic map. Georeferenced image from the National Geologic Map Database (NGMDB) accessed 2025 at: https://ngmdb.usgs.gov/Prodesc/proddesc_8973.htm 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. 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. 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. The data were captured by heads-up digitizing of the georeferenced version (compressed GeoTiff) of the Snyder (1980) printed geologic map obtained from the National Geologic Map Database. Snyder, 1980 2022 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 (Snyder, 1980), GeMS (USGS NCGMP, 2020), and 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 in 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 Snyder, 1980 Neuendorf and others, 2011 FGDC, 2006 2025 Vector Entity point 4,849 G-polygon 3,827 String 10,703 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: "Holocene" or "Triassic and Permian(?)" AlternateSampleID [AltSamID] (FossilPoints) The alternative identifier of a sample. USGS NCGMP, 2020 All values NULL because no alternate sample identifiers were provided on the original map. 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: "randomly spaced black dots" 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: "144,126,129" Azimuth (GenericPoints, 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. Example 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 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. 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 Barnwell, 1955 Barnwell, W.W., 1955, The geology of the south Hahns Peak district: University of Wyoming M.A. thesis, 91 p. DAS05 Behrendt, and others, 1969 Behrendt, J.C., Popenoe, P., and Mattick, R.E., 1969, A geophysical study of North Park and the surrounding ranges, Colorado: Geological Society of America Bulletin, v. 80, p. 1523-1538, https://doi.org/10.1130/0016-7606(1969)80[1523:AGSONP]2.0.CO;2. DAS06 Blackstone, 1977 Blackstone, D.L., Jr., 1977, Independence Mountain thrust fault, North Park basin, Colorado: University of Wyoming Contributions to Geology, v. 16, no. 1, p. 1-15. An independent version of the Independence Mountain thrust and a summary of its previous history of interpretation; it appeared the same year that the present map first became publicly available (Snyder, 1977). Compare Park (1977) and Wellborn (1977). DAS07 Buffler, 1967 Buffler, R.T., 1967, The Browns Park Formation and its relationship to late Tertiary geologic history of the Elkhead region, northwestern Colorado-south central Wyoming: California University, Berkeley, Ph.D. thesis; Ann Arbor, Michigan, University Microfilms, Inc., 215 p. DAS08 Graff, 1973 Graff, P., 1973, The areal geology of the West Fork Lake quadrangle, northern Colorado: Northern Illinois University M.S. thesis, 59 p. DAS09 Hail, 1965 Hail, W.J., Jr., 1965, Geology of northwestern North Park, Colorado: U.S. Geological Survey Bulletin 1188, 133 p, https://doi.org/10.3133/b1188. DAS10 Hill, 1969 Hill, J.J., 1969, Petrology and structure of the Precambrian rocks of the Park Range of north-central Colorado: University Oregon M.S. thesis, 75 p. DAS11 Hunter, 1955 Hunter, J.M., 1955, Geology of the north Hahns Peak area, Routt County, Colorado: University Wyoming M.A. thesis, 77 p. DAS12 McConnell, 1960 McConnell, M.D., 1960, The geology of the Clark-Hinman Park area, Routt County, Colorado: University Wyoming M.A. thesis, 71 p. DAS13 de la Montagne, 1955 de la Montagne, J., 1955, Cenozoic history of the Saratoga Valley area, Wyoming and Colorado: University Wyoming Ph.D. thesis, 140 p. DAS14 Murphy, 1958 Murphy, R.W., 1958, Geology of the Slavonia-Diamond Park area, Routt County, Colorado: University Wyoming M.A. thesis, 54 p. DAS15 Park, 1977 Park, G.M., 1977, Oil potential of the Mesozoic sediments beneath the Independence Mountain thrust fault, North Park, Colorado, in Exploration Frontiers of the central and southern Rockies: Rocky Mountain Association of Geologists 1977 symposium volume, p. 61-66. DAS16 Rollins, 1952 Rollins, J.F., 1952, Stratigraphy and structure of the Sheep Mountain area, in North Park, Jackson County, Colorado: University Nebraska M.S. thesis, 106 p. DAS17 Segerstrom and Kirby, 1969 Segerstrom, K., and Kirby, S.H., 1969, Tuffaceous epiclastic breccia and sandstone near Hahns Peak, Colorado, and their genetic implications, in Geological Survey research 1969: U.S. Geological Survey Professional Paper 650-B, p. B19-B22, https://doi.org/10.3133/pp650B. DAS18 Segerstrom and Young, 1972 Segerstrom, K., and Young, E.J., 1972, General geology of the Hahns Peak and Farwell Mountain quadrangles, Routt County, Colorado: U.S. Geological Survey Bulletin 1349, 63 p, https://doi.org/10.3133/b1349. DAS19 Snyder, 1977 Snyder, G.L., 1977, Geologic map of the northernmost park range and southernmost Sierra Madre, Jackson and Routt Counties, Colorado: U.S. Geological Survey Open-File Report 77-188, https://doi.org/10.3133/ofr77188. DAS20 Wakefield, 1952 Wakefield, L.W., 1952, Geology of the Boetcher (sic) Ridge-Sheep Mountain-Delanos Butte area, North Park, Colorado: University of Colorado M.S. thesis, 74 p. DAS21 Walters, 1953 Walters, R.F., 1953, Geology of the Independence Mountain area, North Park, Colorado: University Wyoming M.A. thesis, 64 p. DAS22 Wellborn, 1977 Wellborn, R.E., 1977, Structural style in relation to oil and gas exploration in North Park-Middle Park basin, Colorado, in Exploration frontiers of the central and southern Rockies: Rocky Mountain Association of Geologists 1977 symposium volume, p. 41-60. DAS23 Welsh, 1951 Welsh, J.E., 1951, Geology of the Sheep Mountain-Delaney Butte area, North Park, Colorado: University Wyoming M.A. thesis, 51 p. DataSourceID [DatSrcID] (CartographicLines, ContactsAndFaults, DataSourcePolys, GenericPoints, GeologicLines, MapUnitPolys) Source of data; alpha-numeric value used to link to DataSources table (foreign key). USGS NCGMP, 2020 DAS01 Snyder, 1980 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: "A line representing the boundary of the mapping area." DefinitionSourceID [DefSrcID] (Glossary) Source(s) of definition; alpha-numeric value used to link to DataSources table (foreign key). Multiple values concatenated with a '|'; for example, "DAS01 | DAS05 | DAS12". USGS NCGMP, 2020 Examples of values: "DAS01" or "DAS01 | DAS02" 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: "dike, sandstone, certain" 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). Multiple values concatenated with a '|'; for example, "DAS01 | DAS05 | DAS12". USGS NCGMP, 2020 Examples of values: "DAS01" or "DAS01 | DAS09 | DAS12" 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 FgdcIdentifier [FgdIde] (RepurposedSymbols) Identifier for symbol from FGDC Digital Cartographic Standard for Geologic Map Symbolization. USGS NCGMP, 2020 Examples of values: "07.02" or "09.097" FieldSampleID [FieSamID] (FossilPoints) Sample number given at time of collection. USGS NCGMP, 2020 Examples of values: "1A" or "12" FossilAge (FossilPoints) Age interpretation for a sample or the age of the map unit as shown in the FossilForms field. USGS NCGMP, 2020 Examples of values: "1,781 m.y." or "Carlile" FossilAgeSourceID [FosAgeSrc] (FossilPoints) Identifies source of age interpretation for this sample. Used to link to DataSources table (foreign key). USGS NCGMP, 2020 DAS01 Snyder, 1980 See DataSources_ID attribute information FossilForms (FossilPoints) Free-format text description for the sample(s). USGS NCGMP, 2020 Example of values: "Ostracode and charophytes from Morrison Formation (I.G. Sohn, written communication, 3/1/73)" FossilFormsSourceID [FosForSrc] (FossilPoints) Identifies source of feature and its attributes. Used to link to DataSources table (foreign key). Multiple values concatenated with a '|'; for example, "DAS01 | DAS05 | DAS12". USGS NCGMP, 2020 Examples of values: "DAS01" or "DAS01 | DAS07" FossilPoints_ID [FosPoi_ID] (FossilPoints) Unique alpha-numeric value assigned to each feature (primary key). USGS NCGMP, 2020 Values are unique within this database. Example of values: "FSP01" FullName (DescriptionOfMapUnits) Name of map unit including identification of containing higher rank unit(s). USGS NCGMP, 2020 Examples of values: "Terrace gravel" or "Juana Lopez Member of the Benton Shale" GenericPoints_ID [GenPoi_ID] (GenericPoints) Unique alpha-numeric value assigned to each feature (primary key). USGS NCGMP, 2020 Values are unique within this database. Example of values: "GNP001" 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: "GEL0001" 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: "----Clastic Sedimentary rock" or "------Ultramafic Intrusive igneous 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 Low The overall lithology of this map unit is not adequately classifiable using this list of terms and definitions, but the term selected is the best available. Or this map unit is insufficiently known to confidently assign a GeoMaterial 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 "04-03" IdentityConfidence [IdeConf] (ContactsAndFaults, GeologicLines, MapUnitPolys, OrientationPoints) 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 [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, 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, FossilPoints, GenericPoints, GeologicLines, MapUnitPolys, OrientationPoints) 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: "Kn" or "^Pcc" LocationConfidenceMeters [LocConfM] (ContactsAndFaults, FossilPoints, GenericPoints, 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] (FossilPoints, GenericPoints, OrientationPoints) Source of location; alpha-numeric value used to link to DataSources table (foreign key). USGS NCGMP, 2020 DAS01 Snyder, 1980 See DataSources_ID attribute information MapUnit (DescriptionOfMapUnits, FossilPoints, GenericPoints, MapUnitPolys, OrientationPoints) Short plain-text identifier of the map unit. Foreign key to DescriptionOfMapUnits table. USGS NCGMP, 2020 Jm Morrison Formation Snyder, 1980 Jms Morrison Formation and Sundance Formation, undifferentiated Snyder, 1980 Js Sundance Formation Snyder, 1980 Kb Benton Shale Snyder, 1980 Kbgm Graneros Shale Member and Mowry Shale Member, undifferentiated of the Benton Shale Snyder, 1980 Kbj Juana Lopez Member of the Benton Shale Snyder, 1980 Kd Dakota sandstone Snyder, 1980 Kn Niobrara Formation Snyder, 1980 Knb Niobrara Formation and Benton Shale, undifferentiated Snyder, 1980 Kps Sandy member of the Pierre Shale Snyder, 1980 Kpsh Shaly member of the Pierre Shale Snyder, 1980 Pfs Forelle Limestone and Satanka Formation, undifferentiated Snyder, 1980 Qal Alluvium Snyder, 1980 Qc Colluvium Snyder, 1980 Qf Felsenmeer deposits Snyder, 1980 Qgb Terrace gravel Snyder, 1980 Qgc Terrace gravel Snyder, 1980 Qgd Terrace gravel Snyder, 1980 Qge Terrace gravel Snyder, 1980 Ql Landslide deposits Snyder, 1980 Qpo Older pediment deposit Snyder, 1980 Qpy Younger pediment deposit Snyder, 1980 Qr Rock glacier Snyder, 1980 Qt Talus deposit Snyder, 1980 Qtb Till Snyder, 1980 Qtc Till Snyder, 1980 Qtd Till Snyder, 1980 Qte Cirque moraine Snyder, 1980 Qtr Travertine Snyder, 1980 Ta Silicic intrusive porphyry Snyder, 1980 Tb Trachybasaltic intrusive Snyder, 1980 Tbe Epiclastic volcanic rock Snyder, 1980 Tbp Browns Park Formation Snyder, 1980 Tc Coalmont Formation Snyder, 1980 TRc Chinle Formation Snyder, 1980 TRPc Chugwater Formation, Red Peak Member and Satanka(?) Formation Snyder, 1980 TRPcc Chinle Formation, Chugwater Formation-Red Peak Member, and Satanka(?) Formation, undifferentiated Snyder, 1980 unmapped area unmapped area Snyder, 1980 water water Snyder, 1980 Xca Conglomerate and agglomerate Snyder, 1980 Xe Gabbro Snyder, 1980 Xeb Basalt dikes Snyder, 1980 Xeo Olivine gabbro Snyder, 1980 Xep Peridotite Snyder, 1980 Xga Alluvium Snyder, 1980 Xgl Quartz diorite Snyder, 1980 Xgn Felsic gneiss through amphibolite metavolcanics Snyder, 1980 Xm Marble and calc-silicate rock (metalimestone) Snyder, 1980 Xo Orthoamphibole rocks Snyder, 1980 Xq Quartzite Snyder, 1980 Xs Pelitic schist (metashale) Snyder, 1980 Xsa Granite Snyder, 1980 Xsl Quartz monzonite Snyder, 1980 Yp Porphyry dike Snyder, 1980 Yq Quartz monzonite Snyder, 1980 YXp Pegmatite Snyder, 1980 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" MaterialAnalyzed [MatAna] (FossilPoints) Earth-material which was analyzed, e.g., wood, shell, zircon, basalt, whole-rock. USGS NCGMP, 2020 Examples of values: "scales" or "bone and zircon" 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: "Shaly member" NewExplanation [NewExp] (RepurposedSymbols) Explanation of usage of symbol in this map portrayal. USGS NCGMP, 2020 Example of values: "The planar or irregular surface between different phases of gabbro of Elkhorn Mountain." Notes (CartographicLines, ContactsAndFaults, DataSources, DataSourcePolys, FossilPoints, GenericPoints, GeologicLines, MapUnitPolys, OrientationPoints) Additional information specific to a particular feature or table entry. USGS NCGMP, 2020 Free text. Example of values: "Inclination ranges 90+/-20." 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 [OldExp] (RepurposedSymbols) Explanatory text from FGDC standard for meaning of symbol. USGS NCGMP, 2020 Example of values: "Vertical cleavage (generic or type unspecified) - Showing strike." 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 Snyder, 1980 See DataSources_ID attribute information 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 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] (FossilPoints, GenericPoints, OrientationPoints) Scale at which the observation should be plotted. Value is scale of the map. USGS NCGMP, 2020 Positive real number. Using original map scale of 48000. RepurposedSymbols_ID [RepSym_ID] (RepurposedSymbols) Unique alpha-numeric value assigned to each feature (primary key). USGS NCGMP, 2020 Values are unique within this database. Example of values: "RPS01" Shape (CartographicLines, ContactsAndFaults, DataSourcePolys, FossilPoints, GenericPoints, GeologicLines, MapUnitPolys, OrientationPoints) 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) An Esri default field that contains the area of a polygon. The value is automatically generated in units of the feature class. Esri 114.61152 663249739.834651 square meters 0.000001 Shape_Length [Shp_Len] (CartographicLines, ContactsAndFaults, DataSourcePolys, GeologicLines, 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 9.539088 391203.741327 meters 0.000001 Source (DataSources) Plain-text short description that identifies the data source. USGS NCGMP, 2020 Example of values: "Snyder, 1980" StationsID (FossilPoints, GenericPoints, 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, FossilPoints, GenericPoints, GeologicLines, MapUnitPolys, OrientationPoints) 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 must be unique within database as a whole. USGS NCGMP, 2020 Values correspond to attributes primarily used in the Type fields. Examples of values: "cross section" or "fault, thrust" Type (CartographicLines, ContactsAndFaults, FossilPoints, GenericPoints, GeologicLines, OrientationPoints) 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 anticline A fold, generally convex upward, whose core contains the stratigraphically older rocks. Neuendorf and others, 2011 ash bed A layer of ash, fine pyroclastic material, bounded above and below by more or less well-defined bedding surfaces. A bed is the smallest formal lithostratigraphic unit. Neuendorf and others, 2011 basal ash bed Locality of exposure of prominent 5-61 cm basal ash bed in Tbp; mainly in northwest quadrant of area where basal conglomerates are absent. A layer of ash, fine pyroclastic material, bounded above and below by more or less well-defined bedding surfaces. A bed is the smallest formal lithostratigraphic unit. Zircons separated by P.W. Schmidt from this basal ash bed exposed near the three-way road intersection on northwest side of Little Red Park have been dated using fission-track methods as 24.8 +/- 2.4 m.y. (Charles W. Naeser, written commun., 1974) Snyder, 1980 | 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 borrow pit Earth material (sand, gravel, etc.) taken from one location to be used for fill at another location; e.g., embankment material obtained from a pit when sufficient excavated material is not available nearby to form the embankment. The borrow material usually has suitable or desirable physical properties for its intended purpose. Letter symbols indicates type of ore at mine or prospect, if known: Au, gold. Snyder, 1980 | Neuendorf and others, 2011 columns Bearing and plunge of inclined columns formed by cooling joints in intrusive rocks. Snyder, 1980 contact A plane or irregular surface between two types or ages of rock. Neuendorf and others, 2011 contact, inclined The angle a contact makes with the horizontal; measured perpendicular to the strike of the contact and in the vertical plane. Snyder, 1980 contact, internal, gabbro The planar or irregular surface between different phases of gabbro of Elkhorn Mountain. Snyder, 1980 | Neuendorf and others, 2011 contact, internal, gabbro, vertical The planar or irregular surface between different phases of gabbro of Elkhorn Mountain that is vertical (inclination is 90). Snyder, 1980 | Neuendorf and others, 2011 contact, vertical Contact that has tilted vertical (90 degrees). Snyder, 1980 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 (DAS01). Neuendorf and others, 2011 dike, sandstone A tabular mass of sedimentary material that cuts across the structure or bedding of pre-existing rock in the manner of an igneous dike. It is formed by the filling of a crack or fissure from below, above, or laterally, by forcible injection or intrusion of sediments under abnormal pressure (as by gas pressure or by the weight of overlying rocks, or by earthquakes), or from above by simple infilling. Neuendorf and others, 2011 fault, high-angle A discrete surface or zone of discrete surfaces separating two rock masses across which one mass has slid past the other. The dip of the fault is usually greater than 45 degrees. Neuendorf and others, 2011 fault, inclined The maximum angle that a fault plane makes with the horizontal; measured perpendicular to the strike of the structure and in the vertical plane. 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, 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 fault, vertical Fault that is measured to be vertical at the locality. Snyder, 1980 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 schist or other coarse-grained rocks, parallel alignment of platy mineral grains (mica) or inequant crystals of other minerals. Snyder, 1980 | Neuendorf and others, 2011 foliation, folded Foliation that is folded and a measurement was taken of the foliation in both limbs of the fold. Snyder, 1980 foliation, folded, vertical Foliation that is folded and a measurement was taken of the foliation in both limbs of the fold. The foliation surface was measured to be vertical. Snyder, 1980 foliation, gently folded General strike and range of dip of gently folded schistosity or foliation. Can be present in schist or other coarse-grained, crystalline rock due to the parallel alignment of platy mineral grains (mica) or inequant crystals of other minerals. Snyder, 1980 | Neuendorf and others, 2011 foliation, gently folded, near vertical General strike and range of dip of gently folded schistosity or foliation that is near vertical (inclination is close to 90). Snyder, 1980 foliation, horizontal Foliation that has tilted horizontal. Snyder, 1980 foliation, joint, vertical Foliation measured in the same location as a zone of prominent joints, and both are measured to be vertical. Snyder, 1980 foliation, vertical Foliation that has tilted vertical (90 degrees). Neuendorf and others, 2011 new fossil or radiometric dating The location of new fossil collection or radiometric dating. Snyder, 1980 glacial erratic A rock fragment carried by glacial ice, or by floating ice, deposited at some distance from the outcrop from which it was derived, and generally though not necessarily resting on bedrock of different lithology. Size ranges from a pebble to a house-size block. Glacial erratic, E, of distinctive composition, and probable source, S. Snyder, 1980 | Neuendorf and others, 2011 glacial striation One of a series of long, delicate, finely cut, commonly straight and parallel furrows or lines inscribed on a bedrock surface by the rasping and rubbing of rock fragments embedded at the base of a moving glacier, and usually oriented in the direction of ice movement; also formed on the rock fragments transported by the ice. Head of arrow at point of observation, showing direction of ice movement. Snyder, 1980 | Neuendorf and others, 2011 joint Strike and dip of zone of prominent joints; may be combined with foliation. A planar fracture, crack, or parting in an intrusive rock, without shear displacement. Snyder, 1980 | Neuendorf and others, 2011 joint, vertical A zone of prominent joints that are measured to be vertical; may be combined with foliation. Snyder, 1980 | Neuendorf and others, 2011 label Location of text labels on the printed map without specific symbology. Represented as a point feature placed at the center of the label or at the end of label leader lines on the printed map. Snyder, 1980 lineation A general, nongeneric term for a locally linear structure or fabric in a rock, 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, crenulation fold axes, and the lines of intersection between bedding and cleavage or any two sets of oriented surfaces (O'Leary et al., 1976; El-Etr, 1976). Letter symbols indicate nature of lineation: Bi, elongate biotite; Bi-Bi, elongate biotite aggregates; FA, minor fold axis; F-AUG, feldspar augen or pods; Hb, hornblende; Si-P, sillimanite-quartz-muscovite pods; F, fluorite. If formed by more than one element, more than one letter symbol is shown. Snyder, 1980 | Neuendorf and others, 2011 lineation, horizontal A lineation that is measured to be horizontal. Letter symbols indicate nature of lineation: FA, minor fold axis; F-AUG, feldspar augen or pods; Si-P, sillimanite-quartz-muscovite pods; F, fluorite. If formed by more than one element, more than one letter symbol is shown. Snyder, 1980 lineation, mineral A linear fabric element defined by the preferred orientation of inequant mineral grains (e.g. prismatic grains of hornblende) or elongated grain aggregates. Letter symbols indicate nature of lineation: Bi, elongate biotite; Hb, hornblende; Ma, magnetite; Si, sillimanite. If formed by more than one element, more than one letter symbol is shown. Snyder, 1980 | Neuendorf and others, 2011 lineation, mineral, horizontal A mineral lineation that is measured to be horizontal. Letter symbols indicate nature of lineation: Hb, hornblende. Snyder, 1980 lineation, mineral, vertical A mineral lineation that is measured to be vertical. Letter symbols indicate nature of lineation: Hb, hornblende. Snyder, 1980 lineation, vertical A lineation that is measured to be vertical. Letter symbols indicate nature of lineation: FA, minor fold axis; F-AUG, feldspar augen or pods; Si-P, sillimanite-quartz-muscovite pods. If formed by more than one element, more than one letter symbol is shown. Snyder, 1980 map boundary A line representing the boundary of the mapping area. Snyder, 1980 mine adit A horizontal passage from the surface into a mine. Letter symbols indicates type of ore at mine or prospect, if known: Ag, silver; Au, gold; Hg, mercury; Mo, molybdenum; Cu, copper; Pb, lead; Sn, tin; W, tungsten; Zn, zinc. Snyder, 1980 | Neuendorf and others, 2011 mine shaft A vertical or inclined excavation through which a mine is worked. Letter symbols indicates type of ore at mine or prospect, if known: Ag, silver; As, arsenic; Au, gold; Cu, copper; Hg, mercury; Mo, molybdenum; Pb, lead; Sn, tin; W, tungsten; Zn, zinc. Snyder, 1980 | Neuendorf and others, 2011 minor fold, axial plane A small-scale fold that is associated with or related to the major fold of an area. The surface (axial plane) of a small-scale fold, that connects the hinge lines of the strata in a fold. Represented as a point feature. Snyder, 1980 | Neuendorf and others, 2011 minor fold, axial plane, vertical, fold axis, multiple A small-scale fold that is associated with or related to the major fold of an area. The surface (axial plane) of a small-scale fold, that connects the hinge lines of the strata in a fold. For which, the surface is measured to be vertical and the map sense of the fold is multiple. Represented as a point feature. Snyder, 1980 | Neuendorf and others, 2011 minor fold, axial plane, vertical A small-scale fold that is associated with or related to the major fold of an area. The surface (axial plane) of a small-scale fold, that connects the hinge lines of the strata in a fold. For which, the surface is measured to be vertical. Represented as a point feature. Snyder, 1980 | Neuendorf and others, 2011 minor fold, fold axis, anticline A small-scale fold that is associated with or related to the major fold of an area. A line (fold axis) of a small-scale fold which, when moved parallel to itself, traces out a folded surface. The map sense of the fold is an anticline; generally convex-upward, whose core contains the stratigraphically older rocks. Represented as a point feature. Letter symbols indicate nature of lineation: FA, minor fold axis; Hb, hornblende. If formed by more than one element, more than one letter symbol is shown. Snyder, 1980 | Neuendorf and others, 2011 minor fold, fold axis, known map sense, asymmetric A small-scale fold that is associated with or related to the major fold of an area. A line (fold axis) of a small-scale fold which, when moved parallel to itself, traces out a folded surface. The map sense of the fold is "Known map sense". Assumed to be asymmetric. Represented as a point feature. Letter symbols indicate nature of lineation: FA, minor fold axis. Snyder, 1980 | Neuendorf and others, 2011 minor fold, fold axis, multiple A small-scale fold that is associated with or related to the major fold of an area. A line (fold axis) of a small-scale fold which, when moved parallel to itself, traces out a folded surface. The map sense of the fold is multiple. Represented as a point feature. Letter symbols indicate nature of lineation: FA, minor fold axis. Snyder, 1980 | Neuendorf and others, 2011 minor fold, fold axis, syncline A small-scale fold that is associated with or related to the major fold of an area. A line (fold axis) of a small-scale fold which, when moved parallel to itself, traces out a folded surface. The map sense of the fold is a syncline; generally concave upward, of which the core contains the stratigraphically younger rocks. Represented as a point feature. Letter symbols indicate nature of lineation: FA, minor fold axis. Snyder, 1980 | Neuendorf and others, 2011 sillimanite-quartz-muscovite pods Location of representative Precambrian felsic gneiss exposures containing prominent sillimanite-quartz-muscovite pods; certain bodies that are long in one dimension and short in two dimensions and are enclosed in schist with the long axis parallel to the schistosity. Snyder, 1980 | Neuendorf and others, 2011 polished surface, vertical A surface that displays a polished texture, characterized by high luster and strong reflected light. The surface was produced by the movement of a small fault parallel(?) with an adjacent large fault, and measure to be vertical. Snyder, 1980 | Neuendorf and others, 2011 prospect pit A general term for any pit made for the purpose of prospecting mineral-bearing ground. Letter symbols indicates type of ore at mine or prospect, if known: Ag, silver; Au, gold; Cu, copper; Mo, molybdenum; Pb, lead; Sn, tin; U, uranium; W, tungsten; Zn, zinc. Snyder, 1980 | Neuendorf and others, 2011 quarry Surficial mine, in which the valuable rock or building stone is exposed by removal of overburden then extracted. Letter symbols indicates type of ore at mine or prospect, if known: Ag, silver; Au, gold; Co, coal; Cu, copper; Pb, lead; U, uranium; W, tungsten; Zn, zinc. Snyder, 1980 | Neuendorf and others, 2011 recessional moraine ridges A line representing the ridge line of an end or lateral moraine; built during a temporary but significant pause in the final retreat of a glacier, or built during a slight or minor readvance of the ice front during a period of general recession. Neuendorf and others, 2011 schistosity and foliation A line (usually broken) on a map, sketched or drawn by visual observation, depicting the overall attitude of schistosity and foliation of Precambrian rocks. Snyder, 1980 | Neuendorf and others, 2011 scratch boundary Used where contacts were omitted and not mapped. Snyder, 1980 syncline A fold of which the core contains the stratigraphically younger rocks; it is generally concave upward. Neuendorf and others, 2011 syncline, overturned A syncline that has been tilted beyond the perpendicular. Sequence of strata thus appears reversed. Neuendorf and others, 2011 trench Any long, narrow cut or excavation for various purposes; to investigate the stratigraphy of an archaeological site, the purpose of prospecting mineral-bearing ground, etc. Neuendorf and others, 2011 vein, fluorite General orientation of swarm of thin fluorite veins on Delaney Butte. Snyder, 1980 water The outline of a body of water (lake) and/or stream. Snyder, 1980 well exposed The location of a contact or fault that has good exposure, as opposed to other localities, at the surface. Snyder, 1980 wilderness boundary A line representing the boundary of a wilderness area. Snyder, 1980 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/i1113" 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 layer, and the field "Azimuth" to the GenericPoints 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/P1ZPHKVM None. No fees are applicable for obtaining the data set. 20260327 Sara C Gonzalez 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 scgonzalez@usgs.gov FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998