Karen S. Morgan John D. Horton 20230612 vector digital data Denver, Colorado U.S. Geological Survey Additional information about Originator: Morgan, K.S. (Akima Systems Engineering), https://orcid.org/0000-0001-8681-6809, Horton, J.D. (USGS), https://orcid.org/0000-0003-2969-9073 Suggested citation: Morgan, K.S., and Horton, J.D., 2023, GIS data for the geologic map of the Arlington quadrangle, Carbon County, Wyoming: U.S. Geological Survey data release, https://doi.org/10.5066/P9HG38IQ. https://doi.org/10.5066/P9HG38IQ Harold J. Hyden John S. King Robert S. Houston 1967 Original publication; compressed Tiff from the National Geologic Map Database (NGMDB) accessed 2021 at: https://ngmdb.usgs.gov/Prodesc/proddesc_1953.htm U.S. Geological Survey Geologic Quadrangle Map GQ-643 Washington, D.C. U.S. Geological Survey Suggested citation: Hyden, H.J., King, J.S., and Houston, R.S., 1967, Geologic map of the Arlington quadrangle, Carbon County, Wyoming: U.S. Geological Survey, Geologic Quadrangle Map GQ-643, scale 1:24,000; https://doi.org/10.3133/gq643 https://doi.org/10.3133/gq643 This U.S. Geological Survey (USGS) data release provides a digital geospatial database for the geologic map of the Arlington quadrangle, Carbon County, Wyoming (Hyden and others, 1967). 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 Geologic Map Quadrangle GQ-643. The 35,776-acre map area represents the geology at a publication scale of 1:24,000. References: Hyden, H.J., King, J.S., and Houston, R.S., 1967, Geologic map of the Arlington quadrangle, Carbon County, Wyoming: U.S. Geological Survey, Geologic Quadrangle Map GQ-643, scale 1:24,000; https://doi.org/10.3133/gq643. 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 Arlington quadrangle, Carbon County, Wyoming. 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. Arlington_GQ-643.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 (Arlington_GQ-643.gdb) contains the following elements: --GeologicMap: feature dataset (subdirectory) containing the following feature classes (GIS layers): ----CartographicLines: line layer representing cartographic constructs that have no real-world physical existence, such as 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. ----GenericPoints: point layer representing the location of adits, coal bed thickness, drill holes, mines and prospect pits. ----GeologicLines: line layer representing the locations of dikes, fold axes, and other linear features. ----MapUnitPolys: polygon layer representing the distribution of geologic map units. ----OrientationPoints: point layer representing structure measurements, such as bedding attitudes, foliation attitudes, and small folds. ----OverlayPolys: polygon layer representing landslide blocks. --DataSources: table that lists sources and (or) references used to derive spatial features (points, lines, polygons) and attribute information. --DescriptionOfMapUnits: table of map unit descriptions derived from the collar of the geologic map or geologic map pamphlet. The hierarchical order of map units is coded in the HierarchyKey field. --GeoMaterialDict: table that defines and lists lithology terms in hierarchical order used in the GeoMaterial field of the DescriptionOfMapUnits table. The standardized vocabulary is available in Appendix 1 of the GeMS documentation. --Glossary: table that defines and lists sources of terms used in the database. 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. 20230612 publication date Complete None planned -106.25 -106.125 41.625 41.50 USGS Thesaurus data services geospatial datasets geographic information systems geology geologic maps bedrock geologic units structural geology ISO 19115 Topic Category geoscientificInformation 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:63d304b8d34e06fef150106f Common Geographic Areas Wyoming Geographic Names Information System (GNIS) Laramie Carbon County Medicine Bow Mountains Rock Mountain Foote Creek Dutton Creek None WY Medicine Bow National Forest None. Please see 'Distribution Info' for details. These data are intended for use at approximately 1:24,000-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

Mail Stop 973, W 6th Ave Kipling St

Lakewood CO 80225 US 303-236-1921 303-236-3200 jhorton@usgs.gov Work was done under contract to the U.S. Geological Survey by Akima Systems Engineering (Herndon, VA) with support from the U.S. Geological Survey Geology, Geophysics, and Geochemistry Science Center (GGGSC), Mineral Resources Program (MRP), and the National Geologic Map Database (NGMDB). Microsoft Windows 10 Enterprise, Version 1909 (Build 18363); Esri ArcGIS 10.8.1.14362 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. Polygon, line, and point features were digitized from the GQ-643 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 1:24,000 scale source map. Map publication techniques employed in 1967 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. Harold J. Hyden John S. King Robert S. Houston 1967 Original publication; compressed Tiff from the National Geologic Map Database (NGMDB) accessed 2021 at: https://ngmdb.usgs.gov/Prodesc/proddesc_1953.htm U.S. Geological Survey Geologic Quadrangle Map GQ-643 Washington, D.C. U.S. Geological Survey Suggested citation: Hyden, H.J., King, J.S., and Houston, R.S., 1967, Geologic map of the Arlington quadrangle, Carbon County, Wyoming: U.S. Geological Survey, Geologic Quadrangle Map GQ-643, scale 1:24,000; https://doi.org/10.3133/gq643 https://pubs.er.usgs.gov/publication/gq643 Hardcopy 1967 publication date Hyden and others, 1967 Original published geologic map. Georeferenced image from the National Geologic Map Database (NGMDB) accessed 2021 at: https://ngmdb.usgs.gov/Prodesc/proddesc_1953.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 Digital and/or Hardcopy 2006 publication date FGDC, 2006 Standardized geologic map symbolization used for symbolizing the map. The data were captured by staff at East View Geospatial by heads-up digitizing of the georeferenced version (compressed GeoTiff) of the Hyden and others (1967) printed geologic map obtained from the National Geologic Map Database. Hyden and others, 1967 2022 Attributes were populated to conform to the Geologic Map Schema (USGS NCGMP, 2020). Definitions of these values are derived from (Hyden and others, 1967), 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 were 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 Hyden and others, 1967 Neuendorf and others, 2011 FGDC, 2006 2022 Vector String 357 G-polygon 241 Entity point 260 Universal Transverse Mercator 13 0.9996 -105.0 0.0 500000.0 0.0 coordinate pair 0.6096 0.6096 meter D_North_American_1927 Clarke_1866 6378206.4 294.9786982138982 Attribute Fields The attribute fields contain attribute information associated with features or records in the data set. The translated shapefile field name that is limited to 10 characters is provided in square brackets as needed. Attribute fields occur in data layer(s) and/or tables noted in parentheses. USGS Authors Age (DescriptionOfMapUnits) Age of map unit as shown in Description of Map Units. USGS NCGMP, 2020 Examples of values: "Pleistocene" or "Upper Cretaceous" 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: "Black contour scattered triangles" 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: "238,235,128" Azimuth (OrientationPoints, GenericPoints) 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: "CAF001" DataSources_ID [DatSrc_ID] (DataSources) Unique alpha-numeric value assigned to each feature (primary key). USGS NCGMP, 2020 DAS01 Hyden and others, 1967 DataSources table; Hyden, H.J., King, J.S., and Houston, R.S., 1967, Geologic map of the Arlington quadrangle, Carbon County, Wyoming: U.S. Geological Survey, Geologic Quadrangle Map GQ-643, scale 1:24,000, https://doi.org/10.3133/gq643. DAS02 Neuendorf and others, 2011 DataSources table; 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 DataSources table; 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. DataSourceID [DatSrcID] (CartographicLines, ContactsAndFaults, DataSourcePolys, GenericPoints, GeologicLines, MapUnitPolys, OverlayPolys) Source of data; alpha-numeric value used to link to DataSources table (foreign key). USGS NCGMP, 2020 DAS01 Hyden and others, 1967 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: "DSP1" Definition (GeoMaterialDict, Glossary) Plain-language definition. USGS NCGMP, 2020 Example of values: "Silt- and sand-sized sediment, deposited by wind." DefinitionSourceID [DefSrcID] (Glossary) Source of definition; alpha-numeric value used to link to DataSources table (foreign key). USGS NCGMP, 2020 DAS01 Hyden and others, 1967 See DataSources_ID attribute information DAS02 Neuendorf and others, 2011 See DataSources_ID attribute information DAS03 USGS NCGMP, 2020 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 Example of values: "(1-20 ft) - cobbles and small boulders of metamorphic rock in sand and clay matrix; mostly unconsolidated but locally cemented." 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 of map unit description; alpha-numeric value used to link to DataSources table (foreign key). USGS NCGMP, 2020 DAS01 Hyden and others, 1967 See DataSources_ID attribute information 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 Example of values: "Forelle Limestone" 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 value: "GNP01" 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: "GEL01" 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: "----Quartzite" or "----Medium and high-grade regional metamorphic rock, of unspecified origin" GeoMaterialConfidence [GeoMatConf] (DescriptionOfMapUnits) Describes appropriateness of GeoMaterial term for describing the map unit. GeMS, 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 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 Example of values: "01" 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 [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, GenericPoints, 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: "Js" or "*Mcm" LocationConfidenceMeters [LocConfM] (ContactsAndFaults, 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] (GenericPoints, OrientationPoints) Source of location; alpha-numeric value used to link to DataSources table (foreign key). USGS NCGMP, 2020 DAS01 Hyden and others, 1967 See DataSources_ID attribute information MapUnit (DescriptionOfMapUnits, GenericPoints, MapUnitPolys, OrientationPoints) Short plain-text identifier of the map unit. Used to link to DescriptionOfMapUnits table (foreign key). USGS NCGMP, 2020 IPcm middle part of the Casper Formation Hyden and others, 1967 IPMcl Lower part of the Casper Formation and Madison Limestone undivided Hyden and others, 1967 IPMcm Middle part of the Casper Formation and Madison Limestone undivided Hyden and others, 1967 Jm Morrison Formation Hyden and others, 1967 Js Sundance(?) Formation Hyden and others, 1967 Kc Cloverly Formation Hyden and others, 1967 Kf Frontier Formation Hyden and others, 1967 Kl Lewis Shale Hyden and others, 1967 Km Mowry Shale Hyden and others, 1967 Kmv Mesaverde Formation Hyden and others, 1967 Kn Niobrara Formation Hyden and others, 1967 Ks Steele Shale (in section A-A' only) Hyden and others, 1967 Kt Thermopolis Shale Hyden and others, 1967 pCa Amphibolite Hyden and others, 1967 pCca Chlorite amphibolite Hyden and others, 1967 pCcs Chlorite-biotite-amphibole schist Hyden and others, 1967 pCfa Fine-grained amphibolite Hyden and others, 1967 pCfg Finely layered hornblende gneiss Hyden and others, 1967 pCgb Garnet-biotite-amphibole gneiss Hyden and others, 1967 pCgg Granite gneiss Hyden and others, 1967 pChg Hornblende gneiss Hyden and others, 1967 pCm Marble Hyden and others, 1967 pCmc Metaconglomerate Hyden and others, 1967 pCms Mica schist Hyden and others, 1967 pCpa Pyroxene amphibolite Hyden and others, 1967 pCq Quartzite Hyden and others, 1967 Pcu upper part of the Casper Formation Hyden and others, 1967 Pf Forelle Limestone Hyden and others, 1967 PIPc upper and middle parts of the Casper Formation undivided Hyden and others, 1967 Ps Satanka Shale Hyden and others, 1967 Qal Alluvium Hyden and others, 1967 Qc Colluvium Hyden and others, 1967 Qls Landslide deposits Hyden and others, 1967 Qp Pediment gravel deposit Hyden and others, 1967 Qt4 Terrace gravel beds 4 Hyden and others, 1967 Qt5 Terrace gravel beds 5 Hyden and others, 1967 Qt6 Terrace gravel beds 6 Hyden and others, 1967 Td Dutton Creek Formation Hyden and others, 1967 TKf Foote Creek Formation Hyden and others, 1967 Trju Upper part of Jelm Formation Hyden and others, 1967 TrPjc Lower part of Jelm Formation and Chugwater Formation undivided Hyden and others, 1967 TrPu Lower part of Jelm, Chugwater, Forelle, and Satanka Formations undivided Hyden and others, 1967 Tw Wind River Formation Hyden and others, 1967 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: "MUP001" 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: "Foote Creek Formation" Notes (CartographicLines, ContactsAndFaults, DataSources, DataSourcePolys, GenericPoints, GeologicLines, MapUnitPolys, OrientationPoints, OverlayPolys) Additional information specific to a particular feature or table entry. USGS NCGMP, 2020 Free text. Values of <null> or #null indicate no entry. OBJECTID [OID] [FID] (all) Object identification: an Esri default field that contains an integer value to uniquely identify a row in an attribute table. Esri sequential integer values, CSV files may be auto populated with -1 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: "ORP001" OrientationSourceID [OriSrcID] (OrientationPoints) Source of orientation data; alpha-numeric value used to link to DataSources table (foreign key). USGS NCGMP, 2020 DAS01 Hyden and others, 1967 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 DMUUnit1 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 DMUUnit2 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] (GenericPoints, OrientationPoints) At what scale (or larger) should this observation or analysis be plotted? At smaller scales, it should not be plotted. Useful to prevent crowding of display at small scales and to display progressively more data at larger and larger scales. Value is scale denominator. USGS NCGMP, 2020 Positive real number. Using original map scale of 24000. Shape (CartographicLines, ContactsAndFaults, DataSourcePolys, GenericPoints, 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 1364.438334 144782374.586123 meters squared 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 59.8763 93410.300462 meters 0.000001 Source (DataSources) Plain-text short description that identifies the data source. USGS NCGMP, 2020 Example of values: "Hyden and others, 1967" StationsID (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, GenericPoints, 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" 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: "anticline" or "bedding, horizontal" Type (CartographicLines, ContactsAndFaults, GenericPoints, 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, fault, or water boundary. USGS NCGMP, 2020 adit A horizontal passage from the surface into a mine. Neuendorf and others, 2011 anticline A fold, generally convex upward, whose core contains the stratigraphically older rocks. 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 coal bed A stratum or bed of coal. Neuendorf and others, 2011 coal bed thickness Thickness of coal, in feet, measured at triangle Hyden and others, 1967 component of dip The direction of the angle of dip, measured in degrees by compass direction. It generally refers to true dip, but can be said of apparent dip as well. Neuendorf and others, 2011 contact A plane or irregular surface between two types or ages of rock. Neuendorf and others, 2011 core hole Any hole drilled for the purpose of obtaining cores; drilled under contract for the U.S. Geological Survey to test for coal. Total depth 441 feet. Hyden and others, 1967 cross section Location of a diagram or drawing that shows features transected by a given plane. Neuendorf and others, 2011 dry hole The universal term in the petroleum industry for an unsuccessful well, i.e. one that does not produce oil or gas in commercial quantities. Neuendorf and others, 2011 fault A discrete surface or zone of discrete surfaces separating two rock masses across which one mass has slid past the other. Relative motion unknown. 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 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, vertical Foliation that has tilted vertical (90 degrees). Neuendorf and others, 2011 landslide block Gravity-emplaced block that retains stratigraphic coherence after downward or rotational displacement. Hyden and others, 1967 landslide block edge Edge of inferred landslide block; Dotted line indicates edge below colluvial cover. Hyden and others, 1967 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. Neuendorf and others, 2011 lineation, mineral A linear fabric element defined by the preferred orientation of inequant mineral grains (e.g. prismatic grains of horneblende) or elongated grain aggregates. Neuendorf and others, 2011 lineation, parallel to axes of crenulation A lineation defined by the hinges of small folds (crenulations) associated with crenulation cleavage. Neuendorf and others, 2011 map boundary A line representing the boundary of the mapping area. Neuendorf and others, 2011 mine The area or property of a mineral deposit that is being excavated; a mining claim. Neuendorf and others, 2011 prospect pit A general term for any shaft, pit, adit, drift, tunnel, or drill hole made for the purpose of prospecting mineral-bearing ground. More specific terms, such as prospect shaft and prospect pit, are generally used. Informal term is dog hole. Neuendorf and others, 2011 quartz crossbedding Direction of dip of bed based on crossbedding in quartzite. Hyden and others, 1967 syncline A fold of which the core contains the stratigraphically younger rocks; it is generally concave upward. Neuendorf and others, 2011 URL (DataSources) Uniform Resource Locator (URL) or Digital Object Identifier (DOI), identifies a document on the World Wide Web. USGS NCGMP, 2020 Example of values: "https://ngmdb.usgs.gov/Prodesc/proddesc_1953.htm" The entity and attribute information provide the tabular data associated with the data set. Please review the detailed descriptions that are provided (the individual attribute descriptions) for information on the values that appear as fields/table entries of the data set. The database conforms to the USGS Geologic Map Schema (GeMS) with the minor addition of the field "Description" to the ContactsAndFaults 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

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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/P9HG38IQ None. No fees are applicable for obtaining the data set. 20230612 John D. Horton U.S. Geological Survey, Rocky Mountain Region Physical Scientist mailing

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Lakewood CO 80225 US 303-236-1921 303-236-3200 jhorton@usgs.gov FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998