Edward M. Larkin 20220929 vector digital data Denver, Colorado U.S. Geological Survey Additional information about Originator: Larkin, E., https://orcid.org/0000-0002-8845-6867 Suggested citation: Larkin, E.M., 2022, GIS data for geologic map of the Butte 1 x 2 degrees quadrangle, Montana: U.S. Geological Survey data release, https://doi.org/10.5066/P9L5THX0. https://doi.org/10.5066/P9L5THX0 Reed S. Lewis 1998 Open File Report Montana Bureau of Mines and Geology Open File Report MBMG 363 Butte, Montana Montana Bureau of Mines and Geology Suggested citation: Lewis, R.S., 1998, Geologic map of the Butte 1 x 2 quadrangle, southwestern Montana: Montana Bureau of Mines and Geology Open-File Report 363, 16 p., 1 sheet, scale 1:250,000. http://www.mbmg.mtech.edu/mbmgcat/public/ListCitation.asp?pub_id=11212& This U.S. Geological Survey (USGS) data release provides an updated digital geospatial database for the geologic map of the Butte 1 degree x 2 degrees quadrangle, Montana (Lewis, 1998). 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 Montana Bureau of Mines and Geology Open File Report MBMG 363 (Lewis, 1998). 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 4.4 million acre, geologically complex Butte 1 degree x 2 degrees quadrangle, at a publication scale of 1:250,000. The map covers parts of Deer Lodge, Granite, Jefferson, Lewis and Clark, Missoula, Powell, Ravalli, and Silver Bow Counties. These GIS data supersede those in the interpretive report (Lewis, 1998). References: Lewis, R.S., 1998, Geologic map of the Butte 1 x 2 quadrangle, southwestern Montana: Montana Bureau of Mines and Geology Open-File Report 363, 16 p., 1 sheet, scale 1:250,000, http://www.mbmg.mtech.edu/mbmgcat/public/ListCitation.asp?pub_id=11212&. 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://pubs.er.usgs.gov/publication/tm11B10. The purpose of the data release is to produce a Geologic Map Schema (GeMS)-compliant version for the geologic map of the Butte 1 degree x 2 degrees quadrangle, Montana, that updates the geospatial data published as part of Montana Bureau of Mines and Geology Open File Report MBMG 363 (Lewis, 1998). 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. Butte_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 (Butte_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 areas underlain by sedimentary breccia. ----GeologicLines: line layer representing the locations of dikes, fold axes, and other linear features. ----OverlayPolys: polygon layer that delineates areas of underlying or overlying material commonly shown as a patterned overprint. ----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. 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. 20220929 publication date Complete None planned -114.269404 -111.764436 47.242272 45.754571 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 Geologic Map Database NGMDB Geologic Map Schema GeMS USGS Metadata Identifier USGS:6298b54cd34ec53d276c8204 Common geographic areas Montana MT Geographic Names Information System (GNIS) Butte Deer Lodge County Granite County Jefferson County Lewis and Clark County Missoula County Powell County Ravalli County Silver Bow County 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 National Geologic Map Database (NGMDB). 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 (Lewis, 1998) 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. Reed S. Lewis 1998 1.0 Open File Report Montana Bureau of Mines and Geology Open File Report MBMG 363 Butte, Montana Montana Bureau of Mines and Geology Suggested citation: Lewis, R.S., 1998, Geologic map of the Butte 1 x 2 quadrangle, southwestern Montana: Montana Bureau of Mines and Geology Open-File Report 363, 16 p., 1 sheet, scale 1:250,000. http://www.mbmg.mtech.edu/mbmgcat/public/ListCitation.asp?pub_id=11212& 250000 Digital and/or Hardcopy 1998 publication date Lewis, 1998 Source of all GIS for this data release and the original map publication. Wallace and others 1986 1.0 Open File Report U.S. Geological Survey Open-File Report OFR 86-292 Lakewood, Colorado U.S. Geological Survey Suggested citation: Wallace, C.A., Schmidt, R.G., Lidke, D.J., Waters, M.R., Elliott, J.E., French, A.B., Whipple, J.W., Zarske, S.E., Blaskowski, M.J., Heise, B.A., Yeoman, R.A., O’Neill, J.M., Lopez, D.A., Robinson, G.D., and Klepper, M.R., 1986, Preliminary map of the Butte 1 x 2 quadrangle, western Montana: U.S. Geological Survey Open-File Report 86-292, scale 1:250,000. https://doi.org/10.3133/ofr86292 250000 Digital and/or Hardcopy 1986 publication date Wallace and others, 1986 Primary geologic map resource for Lewis (1998) map of the Butte 1 x 2 quadrangle. 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. Reed S. Lewis compiled the geology onto scale-stable base materials in a digital geologic map, primarily using the compilation of the Butte quadrangle by Wallace and others (1986) published as U.S. Geological Survey Open-File Report 86-292, as well as more recent and detailed mapping from various authors. The digital geologic map was published as a dataset of Esri ArcInfo interchange files (E00) in a Montana Bureau of Mines and Geology Open File Report (Lewis, 1998) at 1:250,000 scale. The files are stored in the projection - UTM, meters, zone 11, NAD27, Clarke 1866. Wallace and others, 1986 Lewis, 1998 1998 The original data 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 (USGS NCGMP, 2020). Definitions of these values are derived from the source publication (Lewis, 1998), USGS authors, GeMS (USGS NCGMP, 2020), and from the Glossary of Geology (Neuendorf and others, 2011). 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 (http://www.mbmg.mtech.edu/mbmgcat/public/ListCitation.asp?pub_id=11212&) from the Montana Bureau of Mines and Geology 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 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 are 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 Lewis, 1998 Neuendorf and others, 2011 FGDC, 2006 2022 Vector Entity point 73 G-polygon 1995 String 4990 Albers Conical Equal Area 29.5 45.5 -113.0 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: "Cretaceous" or "Permian through Devonian" AreaFillPatternDescription [PatDes] (DescriptionOfMapUnits) Text description (for example, "random small red dashes") provided as a convenience for users who must recreate symbolization. USGS NCGMP, 2020 All values NULL. 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 Examples of values: "255,222,255" or "179,235,179" 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). Many sources represent geologic map data used to create the original printed map as captured from the Figure 2 of the report (Lewis, 1998). USGS NCGMP, 2020 DAS01 Lewis (1998) Lewis, R.S., 1998, Geologic map of the Butte 1 x 2 quadrangle, southwestern Montana: Montana Bureau of Mines and Geology Open-File Report 363, 16 p., 1 sheet, scale 1:250,000. DAS02 USGS NCGMP (2020) U.S. Geological Survey National Cooperative Geologic Mapping Program, 2020, GeMS (Geologic Map Schema) - A standard format for the digital publication of geologic maps: U.S. Geological Survey Techniques and Methods, book 11, chap. B10, 74 p. DAS03 Neuendorf and others (2011) Neuendorf, K.K.E., Mehl, J.P., Jr., and Jackson, J.A., 2011, Glossary of Geology (5th ed.): Alexandria, Va., American Geological Institute, 779 p. DAS04 Barrell (1907) Barrell, J., 1907, Geology of the Marysville mining district, Montana; a study of igneous intrusion and contact metamorphism: U.S. Geological Survey Professional Paper 57, 178 p. DAS05 Becraft and Pinckney (1961) Becraft, G.E., and Pinckney, D.M., 1961, Preliminary map of the northwest quarter of the Boulder quadrangle, Montana: U.S. Geological Survey Mineral Investigations Field Studies Map MF-183, scale 1:24,000. DAS06 Becraft and others (1963) Becraft, G.E., Pinckney, D.M., and Rosenblum, S., 1963, Geology and mineral resources of the Jefferson City quadrangle, Jefferson and Lewis and Clark Counties, Montana: U.S. Geological Survey Professional Paper 428, 101 p. DAS07 Bierwagen (1964) Bierwagen, E.E., 1964, Geology of the Black Mountain area, Lewis and Clark and Powell Counties, Montana: Princeton, New Jersey, Princeton University Ph.D. dissertation, 231 p. DAS08 Blaskowski and others (1983) Blaskowski, M.J., Loen, J.S., and Elliott, J.E., 1983, Map showing geology and minerals deposits of the southeast part of the Alder Gulch quadrangle, Granite County, Montana: U.S. Geological Survey Open-File Report 83-414, scale 1:10,000. DAS09 Bregman (1971) Bregman, M.L., 1971, Structural geology of the Sheep Creek and Rattlesnake Mountain quadrangles, Lewis and Clark County, Montana: Albuquerque, University of New Mexico Ph. D. dissertation, 141 p. DAS10 Brenner (1968) Brenner, R.L., 1968, The geology of Lubrecht Experimental Forest: Montana Forest and Conservation Experimental Station, Lubrecht Series One, Missoula, University of Montana, 71 p. DAS11 Csejtey (1962) Csejtey, Bela, 1962, Geology of the southeast flank of the Flint Creek Range, western Montana: Princeton, New Jersey, Princeton University Ph. D. dissertation, 175 p. DAS12 Desormier (1975) Desormier, W.L., 1975, A section of the northern boundary of the Sapphire tectonic block: Missoula, Montana, University of Montana M.A. thesis, 65 p. DAS13 Elliott and others (1984) Elliott, J.E., Waters, M.R., Campbell, W.L., and Avery, D.W., 1984, Mineral resource potential and geologic map of the Dolus Lakes Roadless Area, Powell and Granite Counties, Montana: U.S. Geological Survey Miscellaneous Field Studies Map MF-1640-A, scale 1:50,000. DAS14 Elliott and others (1985) Elliott, J.E., Wallace, C.A., O'Neill, J.M., Hanna, W.F., Rowan, L.C., Segal, D.B., Zimbelman, D.R., Pearson, R.C., Close, T.J., Federspiel, F.E., Causey, J.D., Willett, S.L., Morris, R.W., and Huffsmith, J.R., 1985, Mineral resource potential of the Anaconda-Pintlar Wilderness Area, Granite, Deer Lodge, Beaverhead, and Ravalli Counties, Montana: U.S. Geological Survey Miscellaneous Field Studies Map MF-1633-A, scale 1:50,000. DAS15 Emmons and Calkins (1913) Emmons, W.H., and Calkins, F.C., 1913, Geology and ore deposits of the Philipsburg quadrangle, Montana: U.S. Geological Survey Professional Paper 78, 271 p. DAS16 Gwinn (1961) Gwinn, V.E., 1961, Geology of the Drummond area, central-western Montana: Montana Bureau of Mines and Geology Special Publication 21 (Geologic Map 4), scale 1:63,360. DAS17 Heise (1983) Heise, B.A., 1983, Structural geology of the Mt. Haggin area, Deer Lodge County, Montana: Missoula, University of Montana M.S. thesis, 77 p. DAS18 Hughes (1970) Hughes, G.J., Jr., 1970, Precambrian stratigraphy and structure in the Henderson-Willow Creek igneous belt, Granite County, Montana: Houghton, Michigan Technological University M.S. thesis, 93 p. DAS19 Jerome (1968) Jerome, N.H., 1968, Geology between Miller and Eightmile Creeks, northern Sapphire Range, western Montana: Missoula, University of Montana M.S. thesis, 49 p. DAS20 Kauffman and Earll (1963) Kauffman, M.E., and Earll, F.N., 1963, Geology of the Garnet Bearmouth area, western Montana: Montana Bureau of Mines and Geology Memoir 39, 40 p. DAS21 Knopf (1963) Knopf, Adolph, 1963, Geology of the northern part of the Boulder batholith and adjacent area, Lewis and Clark and Jefferson Counties, Montana: U.S. Geological Survey Miscellaneous Geological Investigations Map I-381, scale 1:48,000. DAS22 LaTour (1974) LaTour, T.E., 1974, An examination of metamorphism and scapolite in the Skalkaho region, southern Sapphire Range, Montana: Missoula, University of Montana M.S. thesis, 95 p. DAS23 Lelek (1979) Lelek, J.J., 1979, The Skalkaho pyroxenite-syenite complex east of Hamilton, Montana, and the role of magma immiscibility in its formation: Missoula, University of Montana M.S. thesis, 130 p. DAS24 Lidke and others (1983) Lidke, D.J., Wallace, C.A., Antweiler, J.C., Campbell, W.L. Hassemer, J.H., Hanna, W.F., and Close, T.J., 1983 Mineral resource potential of the Welcome Creek Wilderness, Granite County, Montana: U.S. Geological Survey Miscellaneous Field Studies Map MF-1620-A, scale 1:50,000. DAS25 Lidke (1985) Lidke, D.J., 1985, Geology, structure and geometrical analysis of structural relations along the south part of the Georgetown thrust, southwest Montana: Boulder, University of Colorado M.S. thesis, 104 p. DAS26 Mahorney (1956) Mahorney, J.R., 1956, Geology of the Garrity Hill area, Deer Lodge County, Montana: Bloomington, Indiana University M.A. thesis, 40 p. DAS27 Maxwell (1965) Maxwell, J.C., 1965, Structure map and cross sections, southeast Drummond area, in Fields, R. W., and Shepard, W., eds., Geology of the Flint Creek Range, Montana: Billings Geological Society 16th Annual Field Conference Guidebook, scale 1:20,000. DAS28 McGill (1959) McGill, G.E., 1959, Geologic map of the northwest flank of the Flint Creek Range, western Montana: Montana Bureau of Mines and Geology Special Publication 18 (Geologic Map 3), scale 1:36,205. DAS29 Melson (1971) Melson, W.G., 1971, Geology of the Lincoln area, Lewis and Clark County, Montana: Smithsonian Contributions to the Earth Sciences 7, 29 p. DAS30 Mutch (1961) Mutch, T.A., 1961, Geologic map of the northeast flank of the Flint Creek Range, western Montana: Montana Bureau of Mines and Geology Special Publication 22 (Geologic Map 5), 1:48,000. DAS31 Nelson and Dobell (1961) Nelson, W.H., and Dobell, J.P., 1961, Geology of the Bonner quadrangle, Montana: U.S. Geological Survey Bulletin 1111-F, p. 189-235 Map I-296. DAS32 Noel (1956) Noel, J.A., 1956, The geology of the east end of the Anaconda Range and adjacent areas, Montana: Bloomington, Indiana University Ph. D. dissertation, 74 p. DAS33 Pinckney and Becraft (1961) Pinckney, D.M., and Becraft, G.E., 1961, Preliminary geologic map of the southwest quarter of the Boulder quadrangle, Montana: U.S. Geological Survey Mineral Investigations Field Studies Map MF-187, scale 1:24,000. DAS34 Poulter (1956) Poulter, G.J., 1956, Geology of the Georgetown thrust area southwest of Philipsburg, Montana: Montana Bureau of Mines and Geology Geological Investigations Map No. 1, scale 1:48,000. DAS35 Presley (1971) Presley, M.W., 1971, Igneous and metamorphic geology of the Willow Creek drainage basin, southern Sapphire Mountains, Montana: Missoula, University of Montana M.S. thesis, 64 p. DAS36 Reitz (1980) Reitz, B.K., 1980, Evolution of Tertiary plutonic and volcanic rocks near Ravenna, Granite County, Montana: Manhattan, Kansas State University M.S. thesis, 90 p. DAS37 Ruppel (1961) Ruppel, E.T., 1961, Reconnaissance geologic map of the Deer Lodge quadrangle, Powell, Deer Lodge, and Jefferson Counties, Montana: U.S. Geological Survey Mineral Investigations Field Studies Map MF-174, scale 1:48,000. DAS38 Ruppel (1963) Ruppel, E.T., 1963, Geology of the Basin quadrangle, Jefferson, Lewis and Clark, and Powell Counties, Montana: U.S. Geological Survey Bulletin 1151, 121 p. DAS39 Smedes (1968) Smedes, H.W., 1968, Preliminary geologic map of part of the Butte North quadrangle, Silver Bow, Deer Lodge, and Jefferson Counties, Montana: U.S. Geological Survey Open-File Report 68-254, scale 1:36,000. DAS40 Smedes and others (1962) Smedes, H.W., Klepper, M.R., Pinckney, D.M., Becraft, G.E., and Ruppel, E.T., 1962, Preliminary geologic map of the Elk Park quadrangle, Jefferson and Silver Bow Counties, Montana: U.S. Geological Survey Mineral Investigations Field Studies Map MF-246, 1:48,000. DAS41 Stuart (1966) Stuart, C.J., 1966, Metamorphism in the central Flint Creek Range, Montana: Missoula, University of Montana M.S. thesis, 103 p. DAS42 Wallace and Lidke (1980) Wallace, C.A. and Lidke, D.J., 1980, Geologic map of the Rattlesnake Wilderness Study Area, Missoula County, Montana: U.S. Geological Survey Miscellaneous Field Studies Map MF-1235-A, scale 1:50,000. DAS43 Wallace and others (1982) Wallace, C.A., Lidke, D.J., and Obradovich, J.D., 1982, Geologic map of the Sapphire Wilderness and Contiguous Roadless Area, Granite and Ravalli Counties, Montana: U.S. Geological Survey Miscellaneous Field Studies Map MF-1469-A, scale 1:50,000. DAS44 Wanek and Barclay (1966) Wanek, A.A., and Barclay, C.S.V., 1966, Geology of the northwest quarter of the Anaconda quadrangle, Deer Lodge County, Montana: U.S. Geological Survey Bulletin 1222-B, 28 p. DAS45 Weeks (1974) Weeks, R.A., 1974, Geologic map of the Bull Mountain area, Jefferson County, Montana: U.S. Geological Survey Open-File Report 74-354, scale 1:48,000. DAS46 Baken (1984) Baken, J.F., 1984, The structural geology and tectonic history of the northern Flint Creek Range, western Montana: Bozeman, Montana State University M.S. Thesis, 125p. DAS47 Buckley (1990) Buckley, S.N., 1990, Ductile extension in a Late Cretaceous fold and thrust belt, Granite County, west-central Montana: Missoula, University of Montana M.S. Thesis, 42 p. DAS48 Calkins and Emmons (1915) Calkins, F.C., and Emmons, W.H. 1915, Philipsburg, Montana Folio: U.S. Geological Survey Geologic Atlas of the United States, Folio No. 196, Scale 1:125,000. DAS49 Callmeyer (1984) Callmeyer, M.J., 1984, The structural, volcanic, and hydrothermal geology of the Warm Springs Creek area, eastern Garnet Range, Powell County, Montana: Bozeman, Montana State University M.S. Thesis, 84 p. DAS50 Carter (1982) Carter, B.A., 1982, Geology of the Eocene volcanic sequence, Mt. Baldy – Union Peak area, central Garnet Range, Montana: Missoula, University of Montana M.S. Thesis, 55 p. DAS51 Griffin (1989) Griffin, J.H., 1989, Structural style in a left-lateral thrust ramp zone, Bearmouth, Montana: Missoula, University of Montana M.S. Thesis, 68 p. DAS52 Hunter (1984) Hunter, R., 1984, A structural and stratigraphic analysis of Belt Supergroup rocks, northern edge of the Sapphire allochthon, western Montana: Missoula, University of Montana Geology Department, Undergraduate Thesis, 60 p. DAS53 Lidke (1993) Lidke, D.J., and Wallace, C.A., 1993, Rocks and structure of the north-central part of the Anaconda Range, Deer Lodge and Granite Counties, Montana: U.S. Geological Survey Bulletin 1993, Scale 1:24,000, 31 p. DAS54 Montgomery (1958) Montgomery, J.K., 1958, Geology of the Nimrod area, Granite County, Montana: Missoula, University of Montana M.S. Thesis, 61 p. DAS55 Lidke and others (1988) Lidke, D.J., Wallace, C.A., Zarske, S.E., and Macleod, N.S., Jr., 1988, Geologic map of the Welcome Creek Wilderness and vicinity, Granite, Missoula, and Ravalli Counties, Montana: U.S. Geological Survey Miscellaneous Field Studies Map MF-1620-B, Scale 1:50,000. DAS56 Pederson (1976) Pederson, R.J., 1976, Geology of the upper Rock Creek Drainage, Granite County, Montana: Butte, Montana College of Mineral Science and Technology M.S. Thesis, 238 p. DAS57 Reynolds (1991) Reynolds, P.H., 1991, Structural geology of the Blackfoot thrust system in the Cramer Creek area, Missoula County, Montana: Missoula, University of Montana M.S. Thesis, 70 p. DAS58 Thomas (1987) Thomas, M.B., 1987, Structural geology along part of the Blackfoot fault system near Potomac, Missoula County, Montana: Missoula, University of Montana M.S. Thesis, 52 p. DAS59 Wallace (1987) Wallace, C.A., 1987, Generalized geologic map of the Butte 1 degree x 2 degrees, Montana: U.S. Geological Survey Miscellaneous Field Studies Map MF-1925, Scale 1:250,000. DAS60 Wallace and others (1977) Wallace, C.A., Klepper, M.R., and Scarborough, J.M., 1977, Preliminary reconnaissance geologic maps of the Garnet Range, western Montana: U.S. Geological Survey Open-File Report 77-529, Scale 1:48,000 (approx.). DAS61 Wallace and others (1978) Wallace, C.A., Klepper, M.R., and French, A.B., 1978, Preliminary reconnaissance geologic maps of the Garnet Range, western Montana: U.S. Geological Survey Open-File Report 78-418, Scale 1:62,500. DAS62 Wallace and others (1992) Wallace, C.A., Lidke, D.J., Elliot, J.E., Desmarais, N.R., Obradovich, J.D., Lopez, D.A., Zaiske, S.E., Heise, B.A., Blaskowski, M.J., and Loen, J.F., 1992, Geologic map of the Anaconda-Pintlar Wilderness and contiguous Roadless Area, Granite, Deer Lodge, Beaverhead, and Ravalli Counties, western Montana: U.S. Geological Survey Miscellaneous Field Studies Map MF-1633C, Scale 1:50,000, 36 p. DAS63 Watson (1984) Watson, I.A., 1984, Structure of the Rattlesnake area, west-central Montana: Missoula, University of Montana M.S. Thesis, 55 p. DAS64 Wallace and others (1986) Wallace, C.A., Schmidt, R.G., Lidke, D.J., Waters, M.R., Elliott, J.E., French, A.B., Whipple, J.W., Zarske, S.E., Blaskowski, M.J., Heise, B.A., Yeoman, R.A., O’Neill, J.M., Lopez, D.A., Robinson, G.D., and Klepper, M.R., 1986, Preliminary map of the Butte 1 x 2 quadrangle, western Montana: U.S. Geological Survey Open-File Report 86-292, scale 1:250,000. DAS65 Sears (unpublished compilation) Sears, unpublished compilation. DataSourceID [DatSrcID] (CartographicLines, ContactsAndFaults, DataSourcePolys, GenericPoints, GeologicLines, MapUnitPolys, OverlayPolys) Source(s) of data; 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 Examples of values: "Silt- and sand-sized sediment, deposited by wind." or "An anticline in which the hinge line is inclined to the horizontal on both ends." DefinitionSourceID [DefSrcID] (Glossary) Source of definition; alpha-numeric value used to link to DataSources table (foreign key). USGS NCGMP, 2020 DAS01 Lewis, 1998 See DataSources_ID attribute information DAS02 USGS NCGMP, 2020 See DataSources_ID attribute information DAS03 Neuendorf and others, 2011 See DataSources_ID attribute information Description [Descr] (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 Examples of values: "Aplite, alaskite, and pegmatite dikes, sills, and pods" or "Quartz monzodiorite and granodiorite" DescriptionOfMapUnits_ID [DMapUns_ID] (DescriptionOfMapUnits) Unique alpha-numeric value assigned to each feature (primary key). USGS NCGMP, 2020 Values are unique within this database. Example of values: "DMU01" DescriptionSourceID [DesSrcID] (DescriptionOfMapUnits) Source(s) of map-unit description; alpha-numeric value used to link to DataSources table (foreign key). USGS NCGMP, 2020 Values are unique within this database. Multiple values concatenated. Examples of values: "DAS01" and "DAS01 | DAS59 | DAS62"; 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 Examples of values: "Bonner Quartzite of the Belt Supergroup" or "Gabbroic rocks" 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: "------Coarse-grained, intermediate-composition intrusive igneous rock" or "--Water or ice" GeoMaterialConfidence [GeoMatConf] (DescriptionOfMapUnits) Describes appropriateness of GeoMaterial term for describing the map unit. USGS NCGMP, 2020 High The term and definition adequately characterize the overall lithologic nature of rocks and sediments in the map unit. Regarding the subjective term "adequately characterize", we refer to context and objectives of this classification as described in the GeMS documentation. USGS NCGMP, 2020 Medium The term and definition generally characterize the overall lithology of the map unit, but there are one or more significant minor lithologies that are not adequately described by the selected term. USGS NCGMP, 2020 Glossary_ID [Glo_ID] (Glossary) Unique alpha-numeric value assigned to each feature (primary key). USGS NCGMP, 2020 Values are unique within this database. Example of value: "GLO01" HierarchyKey [HKey] (DescriptionOfMapUnits, GeoMaterialDict) String that records hierarchical structure. Has form nn-nn-nn, nnn-nnn, or similar. Numeric, left-padded with zeros, dash-delimited. Each HierarchyKey fragment of each row is the same length to allow text-based sorting of table entries. USGS NCGMP, 2020 Examples of values: "14" or "24-12" IdentityConfidence [IdeConf] (ContactsAndFaults, GeologicLines, MapUnitPolys, 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 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: "------Mafic-composition lava flows" or "--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, 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: "_s" or "Berkeley Pit" 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 Positive real number. 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 Lewis (1998) See DataSources_ID attribute information MapUnit (DescriptionOfMapUnits, GenericPoints, MapUnitPolys) Short plain-text identifier of the map unit. Used to link to DescriptionOfMapUnits table (foreign key). USGS NCGMP, 2020 Cs Sedimentary rocks Lewis, 1998 Ka Aplitic rocks Lewis, 1998 Kem Elkhorn Mountains Volcanics Lewis, 1998 Kg Granitic rocks Lewis, 1998 Kgb Gabbroic rocks Lewis, 1998 Kgd Granodioritic rocks Lewis, 1998 KJs Sedimentary rocks Lewis, 1998 Kl Latite sill Lewis, 1998 Kmd Monzodioritic rocks Lewis, 1998 md Tailings, mine dumps, and slag piles Lewis, 1998 PDs Sedimentary rocks Lewis, 1998 Tab Andesitic and basaltic rocks Lewis, 1998 Tgd Granodioritic rocks Lewis, 1998 TKa Alkalic rocks Lewis, 1998 TKab Andesitic and basaltic volcanic rocks Lewis, 1998 TKg Granitic rocks Lewis, 1998 TKgb Gabbroic rocks Lewis, 1998 TKgd Granodioritic rocks Lewis, 1998 Tlc Lowland Creek Volcanics Lewis, 1998 Trv Rhyolitic volcanic rocks Lewis, 1998 Ts Sedimentary deposits and rocks Lewis, 1998 Qs Surficial sedimentary deposits Lewis, 1998 water water Lewis, 1998 Ybo Bonner Quartzite of the Belt Supergroup Lewis, 1998 Yc Middle Belt Carbonate of the Belt Supergroup Lewis, 1998 Ye Empire Formation of the Belt Supergroup Lewis, 1998 Yg Greyson Formation of the Belt Supergroup Lewis, 1998 Ygr Garnet Range Formation of the Belt Supergroup Lewis, 1998 Ym McNamara Formation of the Belt Supergroup Lewis, 1998 Ymb Metamorphosed rocks of the Belt Supergroup Lewis, 1998 Yms Mount Shields Formation of the Belt Supergroup Lewis, 1998 Ypi Pilcher Quartzite of the Belt Supergroup Lewis, 1998 Yq Quartzite of the Belt Supergroup Lewis, 1998 Ys Spokane Formation of the Belt Supergroup Lewis, 1998 Ysh Shepard Formation of the Belt Supergroup Lewis, 1998 Ysn Snowslip Formation of the Belt Supergroup Lewis, 1998 Yss Snowslip and Shepard Formations of the Belt Supergroup Lewis, 1998 ZYg Gabbroic rocks Lewis, 1998 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: "Latite sill" or "Sedimentary deposits and rocks" Notes (DataSources, ContactsAndFaults, DataSourcePolys, GenericPoints, GeologicLines, MapUnitPolys, OverlayPolys) Additional information specific to a particular feature or table entry. USGS NCGMP, 2020 Free text. Example of values: "unit symbolized as 'Kg' but labeled 'Ka' on the original 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 OverlayPolys_ID [OvePol_ID] (OverlayPolys) Unique alpha-numeric value assigned to each feature (primary key). USGS NCGMP, 2020 Values are unique within this database. Example of values: "OVP1" 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 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 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 of 250000. Shape (ContactsAndFaults, DataSourcePolys, GenericPoints, GeologicLines, MapUnitPolys, 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 12757.178431 17053277099.798384 square meters 0.000001 Shape_Length [Shp_Len] (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 86.760369 2364754.350739 meters 0.000001 Source (DataSources) Plain-text short description that identifies the data source. USGS NCGMP, 2020 Examples of values: "Desormier (1975)" or "Blaskowski and others (1983)" StationsID (GenericPoints) 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 (DescriptionOfMapUnits, ContactsAndFaults, GenericPoints, GeologicLines, MapUnitPolys, 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 Examples of values: "01.01.01" or "sedimentary breccia" or "Kgd" Term (Glossary) Plain-language word for a concept. Values are unique within database as a whole. USGS NCGMP, 2020 Examples of values: "High" or "outcrop or locality of sedimentary breccia" Type (ContactsAndFaults, GenericPoints, GeologicLines, 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 anticline A fold, generally convex upward, whose core contains the stratigraphically older rocks. Neuendorf and others, 2011 anticline, double plunging An anticline in which the hinge line is inclined to the horizontal on both ends. 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, overturned, plunging A fold, generally convex upward, whose core contains the stratigraphically older rocks that has tilted beyond the perpendicular and in which the hinge line is inclined to the horizontal. 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, 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. Lewis, 1998 open pit mine Approximate location of the Berkeley Pit. Lewis, 1998 sedimentary breccia Areas underlain by sedimentary breccia of the Wallace Formation (middle Belt carbonate). Lewis, 1998 silicified and sheared rocks Altered zones in Mississippian and Devonian strata in the northern part of the map area. Lewis, 1998 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 syncline, overturned, plunging An overturned syncline in which the hinge line is inclined to the horizontal. 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. Lewis, 1998 URL (DataSources) Uniform Resource Locator (URL) or Digital Object Identifier (DOI); identifies a document on the World Wide Web. USGS NCGMP, 2020 Examples of values: "https://doi.org/10.3133/pp57" or "https://ngmdb.usgs.gov/Prodesc/proddesc_33338.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

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/P9L5THX0 None. No fees are applicable for obtaining the data set. 20220929 Edward M Larkin U.S. Geological Survey, Rocky Mountain Region Geologist mailing address

Mail Stop 973, W 6th Ave Kipling St

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