Logan A. Owen John D. Horton Micah A. Hernandez Carma A. San Juan 20220121 vector digital data Denver, Colorado U.S. Geological Survey Additional information about Originators: Owen, L.A., https://orcid.org/0000-0001-9806-0316; Horton, J.D., https://orcid.org/0000-0003-2969-9073; Hernandez, M.A., https://orcid.org/0000-0002-9656-0832; San Juan, C.A., https://orcid.org/0000-0002-9151-1919; Suggested citation: Owen, L.A., Horton, J.D., Hernandez, M.A., San Juan, C.A., 2022, GIS data for geologic and structure maps of the Wallace 1 x 2 degrees quadrangle, Montana and Idaho: U.S. Geological Survey data release, https://doi.org/10.5066/P97YXIJK. https://doi.org/10.5066/P97YXIJK Jack E. Harrison Allan B. Griggs John D. Wells 1986 1.0 publication U.S. Geological Survey Miscellaneous Investigations Series Map I-1509-A Denver, Colorado U.S. Geological Survey Suggested citation: Harrison, J.E., Griggs, A.B., and Wells, J.D., 1986, Geologic and structure maps of the Wallace 1 degree x 2 degrees quadrangle, Montana and Idaho: U.S. Geological Survey Miscellaneous Investigations Series Map I-1509-A, 2 sheets, 1:250,000 scale, https://doi.org/10.3133/i1509A. https://doi.org/10.3133/i1509A This U.S. Geological Survey (USGS) data release provides an updated digital geospatial database for the geologic and structure maps of the Wallace 1 degree x 2 degrees quadrangle, Montana and Idaho (Harrison and others, 2000). Attribute tables and geospatial features (lines and polygons) conform to the Geologic Map Schema (USGS NCGMP, 2020) and represent the geologic map as published in USGS Miscellaneous Investigations Series Map I-1509-A (Harrison and others, 1986). Minor errors, such as mistakes in line decoration or differences between the digital data and the map image, are corrected in this version. The database represents the geology for the 16,754 square kilometer, geologically complex Wallace quadrangle in northern Idaho and western Montana, at a publication scale of 1:250,000. The map covers primarily Lake, Mineral, Sanders and Shoshone Counties, but also includes minor parts of Flathead, Lincoln, and Missoula Counties. These GIS data supersede those in the interpretive report (Harrison and others, 2000). References: Harrison, J.E., Griggs, A.B., Wells, J.D., Kelley, W.N., Derkey, P.D., and EROS Data Center, 2000, Geologic and structure maps of the Wallace 1 degree x 2 degrees quadrangle, Montana and Idaho: a digital database: U.S. Geological Survey Miscellaneous Investigations Series Map I-1509-A, version 1.0, 21 p., https://pubs.usgs.gov/imap/i1509a/. Harrison, J.E., Griggs, A.B., and Wells, J.D., 1986, Geologic and structure maps of the Wallace 1 degree x 2 degrees quadrangle, Montana and Idaho: U.S. Geological Survey Miscellaneous Investigations Series Map I-1509-A, 2 sheets, scale 1:250,000, https://doi.org/10.3133/i1509A. 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 a Geologic Map Schema (GeMS)-compliant version for the geologic and structure maps of the Wallace 1 degree x 2 degrees quadrangle, Montana and Idaho, that updates the geospatial data published as part of U.S. Geological Survey Miscellaneous Investigations Series Map I-1509-A (Harrison and others, 2000). Conversion 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. The data reside in the National Geologic Map Database (NGMDB) distributed archive of standardized geoscience information for the nation. Wallace_1x2degrees.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 (Wallace_1x2degrees.gdb) contains the following elements: --GeologicMap: feature dataset (subdirectory) containing the following feature classes (GIS layers): ----ContactsAndFaults: line layer representing locations of contacts and faults. ----DataSourcePolys: polygon layer representing the spatial extent of data sources and (or) references used within the map boundary. ----GenericPoints: point layer representing outcrops of sedimentary breccia. ----GeologicLines: line layer representing the locations of dikes, fold axes, and other linear features. ----MapUnitPolys: polygon layer representing the distribution of geologic map units. --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, available at https://doi.org/10.3133/tm11B10. --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. 20220121 publication date Complete None planned -116.3007 -113.7334 48.2662 46.7318 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:5f4d181c82ce4c3d12318d07 Common geographic areas Idaho Montana ID MT Geographic Names Information System (GNIS) Flathead County Lake County Lincoln County Mineral County Missoula County Sanders County Shoshone County Wallace None. Please see 'Distribution Info' for details. These data are intended for use at approximately 1:250,000-scale or smaller. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although these data have been processed successfully on a computer system at the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty. The USGS or the U.S. Government shall not be held liable for improper or incorrect use of the data described and/or contained herein. Karen Lund U.S. Geological Survey, ROCKY MOUNTAIN REGION Research Geologist mailing address

Mail Stop 973, W 6th Ave Kipling St

Lakewood CO 80225 US 303-236-5600 303-236-3200 klund@usgs.gov Work was accomplished by the U.S. Geological Survey Geology, Geophysics, and Geochemistry Science Center (GGGSC) with support from the Mineral Resources Program (MRP) and the FEDMAP component of the National Cooperative Geologic Mapping Program. Microsoft Windows 10 Enterprise, Version 10 (Build 18363); 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. GIS layer and attribute information were cross walked 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. The original GIS database (Harrison and others, 2000) was converted from ArcInfo interchange files (E00) to an Esri file geodatabase. Minor errors, such as mistakes in line decoration or differences between the digital data and the map image, are corrected in this version. The data set is considered complete for the information presented and as described in the abstract. Horizontal accuracy of point, line, and polygon features is dependent on the source data. Computing technologies used for original data capture resulted in variable line quality and accuracy. Estimated accuracy of horizontal location, provided on a per-feature basis in the attribute field LocationConfidenceMeters in GeMS, was assigned a value of -9 indicating unknown. Base maps and (or) materials used for original data capture (ArcInfo coverages) are no longer available. Registration discrepancies between the printed map and the digital data are not addressed in this version. Vertical accuracy testing does not apply to this dataset. Jack E. Harrison Allan B. Griggs John D. Wells William N. Kelley Pamela D. Derkey EROS Data Center 2000 1.0 vector digital data Menlo Park, California U.S. Geological Survey Suggested citation: Harrison, J.E., Griggs, A.B., Wells, J.D., Kelley, W.N., Derkey, P.D., and EROS Data Center, 2000, Geologic and structure maps of the Wallace 1 degree x 2 degrees quadrangle, Montana and Idaho: a digital database: U.S. Geological Survey Miscellaneous Investigations Series Map I-1509-A, version 1.0, 21 p., https://pubs.usgs.gov/imap/i1509a/. https://pubs.usgs.gov/imap/i1509a/ 250000 Digital and/or Hardcopy 2000 publication date Harrison and others (2000) Source of all GIS for this data release. Jack E. Harrison Allan B. Griggs John D. Wells 1986 publication U.S. Geological Survey Miscellaneous Investigations Series Map I-1509-A Denver, California U.S. Geological Survey Suggested citation: Harrison, J.E., Griggs, A.B., and Wells, J.D., 1986, Geologic and structure maps of the Wallace 1 degree x 2 degrees quadrangle, Montana and Idaho: U.S. Geological Survey Miscellaneous Investigations Series Map I-1509-A, 2 sheets, scale 1:250,000, https://doi.org/10.3133/i1509A. https://doi.org/10.3133/i1509A 250000 Digital and/or Hardcopy 1986 publication date Harrison and others (1986) Original published geologic map. Georeferenced image from the National Geologic Map Database (NGMDB) accessed 2020 at: https://ngmdb.usgs.gov/Prodesc/proddesc_12251.htm U.S. Geological Survey National Cooperative Geologic Mapping Program 2020 publication U.S. Geological Survey Techniques and Methods book 11, chapter B10 Reston, Virginia U.S. Geological Survey Suggested citation: U.S. Geological Survey National Cooperative Geologic Mapping Program, 2020, GeMS (Geologic Map Schema) - A standard format for the digital publication of geologic maps: U.S. Geological Survey Techniques and Methods, book 11, chap. B10, 74 p., https://doi.org/10.3133/tm11B10. https://doi.org/10.3133/tm11B10 Digital and/or Hardcopy 2020 publication date USGS NCGMP (2020) Database schema and some attribute definitions. Klaus K.E. Neuendorf James P. Mehl, Jr. Julia A. Jackson 2011 fifth publication Alexandria, Virginia American Geological Institute Suggested citation: Neuendorf, K.K.E., Mehl, J.P., Jr., and Jackson, J.A., 2011, Glossary of Geology (5th ed.): Alexandria, Va., American Geological Institute, 779 p. Digital and/or Hardcopy 2011 publication date Neuendorf and others (2011) Definitions of some attributes. Federal Geographic Data Committee 2006 publication Reston, Virginia 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. Harrison and others (1986) compiled the geology and published the original geologic paper map at 1:250,000 scale. The geologic map was scanned, digitized, and prepared as ArcInfo coverages by Earth Resources Observation Systems (EROS) Data Center prior to 1994. The data were later converted to topologically correct ArcInfo coverages, attributed, and published by Harrison and others (2000). Harrison and others (1986) 2000 The original data (Harrison and others, 2000) were converted from ArcInfo interchange files (E00) format into feature classes within an Esri file geodatabase. Attributes were standardized to conform to the Geologic Map Schema (GeMS) standard for geologic map publications (USGS NCGMP, 2020). Definitions of these values are derived from the source publication (Harrison and others, 1986), GeMS (USGS NCGMP, 2020), and from the Glossary of Geology (Neuendorf and others, 2011). GeMS geodatabase feature classes and tables were populated with additional information as required. Data layers were re-projected to Albers Equal Area, North American Datum 1983, in units of meters. Base maps and (or) materials used for original data capture are no longer available, therefore a georeferenced version of the original map publication (https://ngmdb.usgs.gov/Prodesc/proddesc_12251.htm) from the National Geologic Map Database was used to compare attribute information and to correct minor discrepancies between the GIS data and the printed map. Minor errors, such as differences in line decoration, line type, or map units were corrected and documented in the Notes attribute field. Registration discrepancies between the printed map and the digital data are not addressed in this version. 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 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 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. The 'Index to Sources of Geologic Data' index map shown on the printed map was digitized and included in the DataSourcePolys polygon layer and DataSources table as a courtesy. These are the sources used to produce the original printed geologic map; they are not the sources used to produce the original GIS data (Harrison and others, 2000). Harrison and others (2000) USGS NCGMP (2020) Harrison and others (1986) Neuendorf and others (2011) FGDC (2006) 20201001 Vector Entity point 98 G-polygon 2139 String 6953 Albers Conical Equal Area 29.5 45.5 -96.0 23.0 0.0 0.0 coordinate pair 0.6096 0.6096 meters North_American_Datum_1983 GRS_1980 6378137.0 298.257222101 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: "Cambrian" or "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) Examples of values: "light gray dots" or "diagonal yellow lines" 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: "255,255,128" 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 Harrison and others, 2000 Harrison, J.E., Griggs, A.B., Wells, J.D., Kelley, W.N., Derkey, P.D., and EROS Data Center, 2000, Geologic and structure maps of the Wallace 1 degree x 2 degrees quadrangle, Montana and Idaho: a digital database: U.S. Geological Survey Miscellaneous Investigations Series Map I-1509-A, version 1.0, 21 p. DAS02 Harrison and others, 1986 Harrison, J.E., Griggs, A.B., and Wells, J.D., 1986, Geologic and structure maps of the Wallace 1 degree x 2 degrees quadrangle, Montana and Idaho: U.S. Geological Survey Miscellaneous Investigations Series Map I-1509-A, 2 sheets, scale 1:250,000. 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. DAS04 Neuendorf and others, 2011 Neuendorf, K.K.E., Mehl Jr., J.P., and Jackson, J.A., 2011, Glossary of Geology (fifth edition): American Geological Institute, Alexandria, Virginia, 779 p. DAS05 Harrison, unpublished mapping 1970-76 Mapping by J.E. Harrison, 1970-76 DAS06 Griggs, unpublished mapping 1970-74 Mapping by A.B. Griggs, 1970-74 DAS07 Wells and Harrison, unpublished mapping 1972-74 Mapping by J.D. Wells and J.E. Harrison 1972-74 DAS08 Griggs, unpublished mapping 1973-74 Mapping by A.B. Griggs, 1973-74; slightly revised by J.E. Harrison and J.D. Wells, 1979-80 DAS09 Harrison, unpublished mapping 1972 Mapping by J.E. Harrison, 1972; slightly revised by R.L. Earhart and R.E. Van Loenen, U.S. Geological Survey, 1978-79 DAS10 Gibson and others, 1941 Gibson, Russell, Jenks, W.F., and Campbell, Ian, 1941, Stratigraphy of the Belt Series in Libby and Trout Creek quadrangles, northwestern Montana and northern Idaho: Geological Society of America Bulletin, v. 52, no. 3, pl. 1. DAS11 Hosterman, 1956 Hosterman, J.W., 1956, Geology of the Murray area, Shoshone County, Idaho: U.S. Geological Survey Bulletin 1027-P, pl. 57, scale 1:62,500. DAS12 Hobbs and others, 1965 Hobbs, S.W., Griggs, A.B., Wallace, R.E., and Campbell, A.B., 1965, Geology of the Coeur d'Alene district, Shoshone County, Idaho: U.S. Geological Survey Professional Paper 478, 139 p. DAS13 Wallace and Hosterman, 1956 Wallace, R.E., and Hosterman, J.W., 1956, Reconnaissance geology of western Mineral County, Montana: U.S. Geological Survey Bulletin 1027-M, p. 575-612, pl. 48, scale 1:62,500. DAS14 Hietanen, 1963, 1968 Hietanen, Anna, 1963, Anorthosite and associated rocks in the Boehls Butte quadrangle and vicinity, Idaho: U.S. Geological Survey Professional Paper 344-8, pl. 1, scale 1:48,000; 1968, Belt Series in the region around Snow Peak and Mallard Peak, Idaho: U.S. Geological Survey Professional Paper 344-E, pls. 1 and 2, scale 1:48,000. DAS15 Campbell, 1960 Campbell, A.B., 1960, Geology and mineral deposits of the St. Regis - Superior area, Mineral County, Montana: U.S. Geological Survey Bulletin 1082-1, pl. 28, scale 1 :62,500. DAS16 Cressman, 1981 Cressman, E.R., 1981, Geologic map of parts of the Plains and Perma quadrangles, western Montana: U.S. Geological Survey Open-File Report 81-785. DAS17 Wells, 1974 Wells, J.D., 1974 [1975), Geologic map of the Alberton quadrangle, Missoula, Sanders, and Mineral Counties, Montana: U.S. Geological Survey Geologic Quadrangle Map GQ-1157, scale 1:62,500. DAS18 Wold, 1982 Wold, R.J., 1982, Seismic reflection study of Flathead Lake, Montana: U.S. Geological Survey Miscellaneous Field Studies Map MF-1433. DAS19 Aadland, 1977 Aadland, R.K., 1977, Cambrian carbonates in the Libby trough, northwest Montana: Geological Society of America Abstracts with Programs, v. 9, no. 6, p. 705. DAS20 Alden, 1953 Alden, W.C., 1953, Physiography and glacial geology of western Montana and adjacent areas: U.S. Geological Survey Professional Paper 231, 200 p. DAS21 Anderson, 1930 Anderson, A.L., 1930, Geology and ore deposits of the Clark Fork district, Idaho: Idaho Bureau of Mines and Geology Bulletin 12, 132 p. DAS22 Bretz and others, 1956 Bretz, J.H., Smith, H.T.U., and Neff, G.E., 1956, Channeled scabland of Washington - New data and interpretations: Geological Society of America Bulletin, v. 67, no. 8, p. 957 - 1049. DAS23 Cressman, 1982 Cressman, E.R., 1982, Generalized stratigraphic section of the Prichard Formation, basal Belt Supergroup, Proterozoic Y, near Plains, Montana: U.S. Geological Survey Open-File Report 82-495. DAS24 Harrison, 1972 Harrison, J.E., Precambrian Belt basin of northwestern United States: Its geometry, sedimentation, and copper occurrences: Geological Society of America Bulletin, v. 83, no. 5, p. 1215-1240. DAS25 Harrison and Grimes, 1970 Harrison, J.E., and Grimes, D.J., 1970, Mineralogy and geochemistry of some Belt rocks, Montana and Idaho: U.S. Geological Survey Bulletin 1312-O, 49 p. DAS26 Harrison and Jobin, 1963 Harrison, J.E., and Jobin, D.A., 1963, Geology of the Clark Fork quadrangle, Idaho-Montana: U.S. Geological Survey Bulletin 1141-K, 38 p. DAS27 Keim and Rector, 1964 Keim, J.W., and Rector, R.J., 1964, Paleozoic rocks in northwestern Montana - A newly recognized occurrence: Geological Society of America Bulletin, v. 75, no. 6, p. 575-578. DAS28 Marvin and others, 1984 Marvin, R.F., Zartman, R.E., Obradovich, J.D., and Harrison, J.E., 1984, Geochronometric and lead isotope data on samples from the Wallace 1 degree X 2 degree quadrangle, Montana and Idaho: U.S. Geological Survey Miscellaneous Field Studies Map MF-1354-G. DAS29 Pardee, 1910 Pardee, J.T., 1910, The glacial Lake Missoula: Journal of Geology, v. 18, p. 376-386. DAS30 Ransom and Calkins, 1908 Ransom, F.L., and Calkins, F.C., 1908, The geology and ore deposits of the Coeur d'Alene district, Idaho: U.S. Geological Survey Professional Paper 62, 203 p. DAS31 Shenon and McConnel, 1939 Shenon, P.J., and McConnel, R.H., 1939, The silver belt of the Coeur d'Alene district, Idaho: Idaho Bureau of Mines and Geology Pamphlet 50, 8 p. DataSourceID [DatSrcID] (ContactsAndFaults, DataSourcePolys, GenericPoints, GeologicLines, MapUnitPolys) Source(s) of data and/or geologic mapping used to compile original printed geologic map; alpha-numeric value used to link to DataSources table (foreign key). USGS NCGMP (2020) Values are unique within this database. Example of values: "DAS01" 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: "Sediment formed by weathering and erosion of preexisting rocks or minerals; eroded particles or clasts are transported and deposited by gravity, air, water, or ice." DefinitionSourceID [DefSrcID] (Glossary) Source of definition; alpha-numeric value used to link to DataSources table (foreign key). USGS NCGMP (2020) DAS02 Harrison and others (1986) Harrison, J.E., Griggs, A.B., and Wells, J.D., 1986, Geologic and structure maps of the Wallace 1 degree x 2 degrees quadrangle, Montana and Idaho: U.S. Geological Survey Miscellaneous Investigations Series Map I-1509-A, 2 sheets, scale 1:250,000. 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. DAS04 Neuendorf and others (2011) Neuendorf, K.K.E., Mehl Jr., J.P., and Jackson, J.A., 2011, Glossary of Geology (fifth edition): American Geological Institute, Alexandria, Virginia, 779 p. Description [Descr] (DescriptionOfMapUnits, ContactsAndFaults, 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 value from the DescriptionOfMapUnits table: "Semiconsolidated to consolidated conglomerate interlayered with shale, coal, and volcanic ash" Examples of values from the ContactsAndFaults feature class: "contact, certain" or "fault, concealed" DescriptionOfMapUnits_ID [DMapUns_ID] (DescriptionOfMapUnits) Unique alpha-numeric value assigned to each feature (primary key). USGS NCGMP (2020) Values are unique within this database. Example of values: "DMU01" DescriptionSourceID [DesSrcID] (DescriptionOfMapUnits) Source(s) of map unit description; alpha-numeric value used to link to DataSources table (foreign key). USGS NCGMP (2020) Values are unique within this database. Multiple values concatenated. Examples of values: "DAS02" and "DAS02 | DAS20 | DAS22 | DAS29"; 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) 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: "Quartzite member of the Wallace Formation" 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: "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: "GEL001" GeoMaterial [GeoMat] (DescriptionOfMapUnits, GeoMaterialDict) Categorization of map unit based on lithologic and genetic character, term selected from NGMDB standard term list defined in Appendix 1 of GeMS documentation. USGS NCGMP (2020) Example of values: "Quartzite" or "Higher-grade regional metamorphic rock of unspecified origin" 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 values: "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: "33-01" IdentityConfidence [IdeConf] (ContactsAndFaults, GeologicLines, MapUnitPolys) Confidence that feature is correctly identified. USGS NCGMP (2020) certain Identity of a feature can be determined using relevant observations and scientific judgment; therefore, one can be reasonably confident in the credibility of this interpretation. USGS NCGMP (2020) 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) 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 (DescriptionOfMapUnits, ContactsAndFaults, GenericPoints, GeologicLines, MapUnitPolys) Plain-text equivalent of the desired annotation for a feature: for example "14 Ma", or "^c" which (when used with the FGDC GeoAge font) results in the geologic map-unit label TRc (with TR run together to make the Triassic symbol). USGS NCGMP (2020) Examples of values: "_sq" or "Ygr" LocationConfidenceMeters [LocConfM] (ContactsAndFaults, GenericPoints, GeologicLines) Estimated half-width in meters of positional uncertainty envelope; position is relative to other features in database. USGS NCGMP (2020) Value of -9 indicates value is unknown. LocationSourceID [LocSrcID] (GenericPoints) Source of location; alpha-numeric value used to link to DataSources table (foreign key). USGS NCGMP (2020) DAS01 Harrison and others (2000) Harrison, J.E., Griggs, A.B., Wells, J.D., Kelley, W.N., Derkey, P.D., and EROS Data Center, 2000, Geologic and structure maps of the Wallace 1 degree x 2 degrees quadrangle, Montana and Idaho: a digital database: U.S. Geological Survey Miscellaneous Investigations Series Map I-1509-A, version 1.0, 21 p. MapUnit (DescriptionOfMapUnits, GenericPoints, MapUnitPolys) Short plain-text identifier of the map unit. Used to link to DescriptionOfMapUnits table (foreign key). USGS NCGMP (2020) Cl Limestone and dolomite Harrison and others (1986) Cs Cambrian sedimentary rocks, undivided Harrison and others (1986) Csq Shale and quartzite Harrison and others (1986) Kg Felsic plutons Harrison and others (1986) Ks Syenite Harrison and others (1986) Qal Alluvial deposits Harrison and others (1986) Qg Glacial, fluvioglacial, and flood deposits Harrison and others (1986) Ql Lake sediments Harrison and others (1986) Qs Landslide deposits Harrison and others (1986) QTg Gravels Harrison and others (1986) Tcr Columbia River Basalt Group Harrison and others (1986) Td Dioritic intrusive rocks Harrison and others (1986) Tg Granitic plutons and plugs Harrison and others (1986) Ts Sedimentary rocks Harrison and others (1986) Tv Volcanic rocks Harrison and others (1986) Xan Anorthosite Harrison and others (1986) Xgn Gneiss and schist Harrison and others (1986) Yb Burke Formation Harrison and others (1986) Ybo Bonner quartzite Harrison and others (1986) Ye Empire Formation Harrison and others (1986) Ygr Garnet Range Formation Harrison and others (1986) Yh Helena Formation Harrison and others (1986) Yl Libby Formation Harrison and others (1986) Ym McNamara Formation Harrison and others (1986) Yms Mount Shields Formation Harrison and others (1986) Ypi Pilcher quartzite Harrison and others (1986) Ypl Lower part of the Prichard Formation Harrison and others (1986) Ypu Upper part of the Prichard Formation Harrison and others (1986) Yr Revett Formation Harrison and others (1986) Ys Spokane Formation Harrison and others (1986) Ysh Shepard Formation Harrison and others (1986) Ysn Snowslip Formation Harrison and others (1986) Ysp Striped Peak Formation Harrison and others (1986) Yspp Dolomite and black laminated argillite members of the Clark Fork section, Striped Peak Formation Harrison and others (1986) Ysr St. Regis Formation Harrison and others (1986) Yw Middle and lower members of the Wallace Formation Harrison and others (1986) Ywl Lower member of the Wallace Formation Harrison and others (1986) Ywm Middle member of the Wallace Formation Harrison and others (1986) Ywq Quartzite member of the Wallace Formation Harrison and others (1986) Ywu Upper member of the Wallace Formation Harrison and others (1986) ZYd Mafic sills and dikes Harrison and others (1986) MapUnitPolys_ID [MUPs_ID] (MapUnitPolys) Unique alpha-numeric value assigned to each feature (primary key). USGS NCGMP (2020) Values are unique within this database. Example of values: "MUP0001" Name (DescriptionOfMapUnits) Name of map unit, as shown in boldface in traditional description of map units. Identifies unit within its hierarchical context. USGS NCGMP (2020) Examples of values: "Snowslip Formation" or "Felsic plutons" Notes (DataSources, ContactsAndFaults, DataSourcePolys, GenericPoints, GeologicLines, MapUnitPolys) Additional information specific to a particular feature or table entry. USGS NCGMP (2020) Free text. Example of values: "changed from water to contact to match the printed map" 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 ParagraphStyle [ParaSty] (DescriptionOfMapUnits) Token that identifies formatting of paragraph(s) within traditional Description of Map Units that correspond to this table entry. USGS NCGMP (2020) DMU1 Paragraph style for formatted description of a first-rank map unit within Description of Map Units table. Times New Roman, Regular, 10 pt, 12 pt leading, left justified, 66 pt left indent, -20 pt 1st line indent, 3 pt space before. USGS NCGMP (2020) DMU2 Paragraph style for 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) 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) PlotAtScale [PlotAtSca] (GenericPoints) Scale at which an observation should be plotted. Value is scale of the map. USGS NCGMP (2020) Positive real number. Using original map scale 250000. Shape (ContactsAndFaults, DataSourcePolys, GenericPoints, GeologicLines, MapUnitPolys) 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 9042.157425 16754174248.974041 square meters 0.000001 Shape_Length [Shp_Len] (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 72.864517 919575.962162 meters 0.000001 Source (DataSources) Plain-text short description that identifies the data source. USGS NCGMP (2020) Examples of values: "Harrison and others, 1986" or "Griggs, unpublished mapping 1973-74" StationsID (GenericPoints) Foreign key to Stations point feature class (not used in this geodatabase) USGS NCGMP (2020) All values are NULL. No values entered. Symbol (DescriptionOfMapUnits, ContactsAndFaults, GenericPoints, GeologicLines, MapUnitPolys) Reference to a point marker, line symbol, or area-fill symbol that is used on the map graphic to denote the feature: perhaps a star for a K-Ar age locality, or a heavy black line for a fault. USGS NCGMP (2020) Examples of values: "01.01.01" or "Cs" Term (Glossary) Plain-language word for a concept. Values are unique within database as a whole. USGS NCGMP (2020) Examples of values: "anticline" or "sills and dikes" Type (ContactsAndFaults, GenericPoints, GeologicLines) Classifier that specifies what kind of geologic feature is represented by a database element: that a certain line within feature class ContactsAndFaults is a contact, or thrust fault, or water boundary. USGS NCGMP (2020) anticline A fold, generally convex upward, whose core contains the stratigraphically older rocks. Neuendorf and others (2011) anticline, overturned A fold, generally convex upward, whose core contains the stratigraphically older rocks that has tilted beyond the perpendicular. Neuendorf and others (2011) anticline, plunging An anticline in which the hinge line is inclined to the horizontal. Neuendorf and others (2011) contact A plane or irregular surface between two types or ages of rock. Neuendorf and others (2011) fault A discrete surface or zone of discrete surfaces separating two rock masses across which one mass has slid past the other. Neuendorf and others (2011) fault, normal A fault in which the hanging wall has moved downward relative to the footwall. The angle of the fault is usually 45-90 degrees, and in most cases close to 60 degrees. Neuendorf and others (2011) fault, oblique-slip, right-lateral A fault on which the net slip has dip slip and strike slip components and the side opposite the observer has been displaced to the right. Neuendorf and others (2011) fault, strike-slip, right-lateral A fault on which the movement is parallel to the fault's strike and which the side opposite the observer has been displaced to the right. Neuendorf and others (2011) fault, thrust A fault with a dip of 45 degrees or less over much of its extent, on which the hanging wall has moved upward relative to the footwall. Neuendorf and others (2011) map boundary A line representing the boundary of the mapping area. Harrison and others (1986) monocline A local steepening in an otherwise uniform gentle dip. Neuendorf and others (2011) monocline, plunging A monocline in which the hinge line is inclined to the horizontal. Neuendorf and others (2011) outcrop or locality of sedimentary breccia A terrigenous rock formed by lithification of angular gravel (in which 30% of large particles are greater than 2mm); e.g. a talus breccia Neuendorf and others (2011) sills and dikes A tabular igneous intrusion that parallels or cuts across the bedding or foliation of the sedimentary or metamorphic country rock, respectively. Neuendorf and others (2011) syncline A fold of which the core contains the stratigraphically younger rocks; it is generally concave upward. Neuendorf and others (2011) syncline, double plunging A syncline in which the hinge line is inclined to the horizontal on both ends. 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) syncline, plunging A syncline in which the hinge line is inclined to the horizontal. Neuendorf and others (2011) water The outline of a body of water (lake) and/or stream. Harrison and others (1986) 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://pubs.usgs.gov/imap/i1509a/" The entity and attribute information provide the tabular data associated with the data set. Please review the detailed descriptions that are provided (the individual attribute descriptions) for information on the values that appear as fields/table entries of the data set. The database conforms to the USGS Geologic Map Schema (GeMS) with the minor addition of the field “Description” to the ContactsAndFaults and GeologicLines layers. A full description of the GeMS database structure can be accessed at https://doi.org/10.3133/tm11B10. U.S. Geological Survey - National Geologic Map Database (NGMDB) mailing address

12201 Sunrise Valley Dr., Mail Stop 908

Reston VA 20192 United States 1-888-ASK-USGS (1-888-275-8747) ngmdb@usgs.gov Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, 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/P97YXIJK None. No fees are applicable for obtaining the data set. 20220121 Carma A San Juan U.S. Geological Survey, ROCKY MOUNTAIN REGION Physical Scientist mailing address

Mail Stop 973, W 6th Ave Kipling St

Lakewood CO 80225 US 303-236-2450 303-236-3200 csanjuan@usgs.gov FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998