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A mineral resource assessment was performed by the U.S. Geological Survey (USGS) to assess the potential of undiscovered skarn-hosted tungsten resources in the Northern Rocky Mountain region of eastern Idaho and western Montana. This region has seen moderate tungsten trioxide (WO3) production in the past from a variety of mineralization styles including skarn, vein and replacement, and wolframite-quartz veins. The geology of the area is dominated by large plutons of Cretaceous to Tertiary age, emplaced into a belt of sedimentary rock ranging from Mesoproterozoic to Permian age, and affected by tectonism related to the Sevier and later Laramide orogenies. Known tungsten (W) skarn mineral sites are associated with...
Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Ashton, Bald Mountain, Beaverhead County, Bitterroot Range, Boise County, All tags...
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The data release for the geologic and structure map of the Choteau 1 x 2 degree quadrangle, western Montana, is a Geologic Map Schema (GeMS)-compliant version that updates the GIS files for the geologic map published in U.S. Geological Survey (USGS) Miscellaneous Investigations Series Map I-1300 (Mudge and others, 2001). The updated digital data present the attribute tables and geospatial features (lines and polygons) in the format that meets GeMS requirements. This data release presents geospatial data for the geologic map that is published as two plates. 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...
    map background search result map search result map USGS 1:62500-scale Quadrangle for Choteau, MT 1960 USGS 1:62500-scale Quadrangle for Choteau, MT 1960 USGS 1:24000-scale Quadrangle for Choteau, MT 1987 USGS 1:100000-scale Quadrangle for Choteau, MT 1984 USGS 1:250000-scale Quadrangle for Choteau, MT 1958 USGS 1:250000-scale Quadrangle for Choteau, MT 1958 USGS 1:250000-scale Quadrangle for Choteau, MT 1962 USGS 1:250000-scale Quadrangle for Choteau, MT 1976 USGS 1:250000-scale Quadrangle for Choteau, MT 1955 USGS 1:250000-scale Quadrangle for Choteau, MT 1957 USGS 1:125000-scale Quadrangle for Choteau, MT 1920 Spatial data associated with tungsten skarn resource assessment of the Northern Rocky Mountains, Montana and Idaho GIS Data for Geologic and Structure Map of the Choteau 1 x 2 Degree Quadrangle, Western Montana USGS 1:24000-scale Quadrangle for Choteau, MT 1987 USGS 1:62500-scale Quadrangle for Choteau, MT 1960 USGS 1:62500-scale Quadrangle for Choteau, MT 1960 USGS 1:125000-scale Quadrangle for Choteau, MT 1920 USGS 1:100000-scale Quadrangle for Choteau, MT 1984 USGS 1:250000-scale Quadrangle for Choteau, MT 1958 USGS 1:250000-scale Quadrangle for Choteau, MT 1958 USGS 1:250000-scale Quadrangle for Choteau, MT 1962 USGS 1:250000-scale Quadrangle for Choteau, MT 1976 USGS 1:250000-scale Quadrangle for Choteau, MT 1955 USGS 1:250000-scale Quadrangle for Choteau, MT 1957 GIS Data for Geologic and Structure Map of the Choteau 1 x 2 Degree Quadrangle, Western Montana Spatial data associated with tungsten skarn resource assessment of the Northern Rocky Mountains, Montana and Idaho