Digital geological maps in the western Belt Basin, Kootenai, Bonner, Benewah and Shoshone counties, Idaho and Lincoln, Mineral, and Sanders counties, Montana

This metadata describes thirteen different geo-referenced tif
images. Hand colored geological mapped data of the area in
Sanders and Lincoln counties, Montana and Kootenai, Bonner,
Benewah, and Shoshone counties, Idaho were converted to digital
format (TIFF). These data were donated to US Geological Survey by
the mineral industry. The area lies in the western part of the
Belt Basin and contains metasedimentary rocks of Middle
Proterozoic age. The area mainly contains rocks of the Prichard,
Burke, Revett, St. Regis, Wallace, Empire and Spokane formations.
The source maps were scanned on an Ideal FSC 6010 36" width color
pass through scanner at 200 ppi as 8 bit indexed color or in two
instances at the 24 bit color level. Images were registered and
rectified to provided neatline coverages in Universal Transverse
Mercator zone 11 projection using ArcView Image Analysis
Extension, version 1.1.
The source maps were non-published
Asarco company maps representing different geographical areas.
TIFF image names and their corresponding descriptions belonging to
the Cabinet Mountains Reconnaissance program include:
>PL1R -Geologic map, Lincoln Co., MT,
>PL2R - Geology and section location of southwestern Lincoln County,
>PL3AR - plate 3a,
>PL3BR - plate 3b -Geologic map Sanders Co., MT and Shoshone Co.,
>PL4R - 1981 Cabinet Mountains Reconn. Program, Troy type Cu-Ag deposits, ID,
>PL5AR - Plate 5a,
>PL5BR - plate 5b - Geologic map Troy Type Cu-Ag deposits and shale-hosted Pb-Zn-Ag deposits, Bonner, Kootenai, and Shoshone Co.'s, ID,
>PL6R - Geologic map Troy Type Cu-Ag deposits and shale-hosted Pb-Zn-Ag deposits, Kootenai and Benewah Counties, ID,
>PL7R - Geologic map Troy type Cu-Ag deposits Benewah, Kootenai, and Shoshone Co.'s Idaho,
>PL8R - Geologic map Troy-Type Cu-Ag deposits Shoshone, Co., Idaho and Mineral Co., MT.,
>PL9R - Geologic map Troy-Type Cu-Ag deposits, Sanders and Mineral Co., MT,
>PLGTMTR - Goat Mtn. and Brooks Mtn. mineralized zone Mineral County, Montana.
The following image name belongs to the Troy West Project:
>TROYR - Troy Mine Area, Lincoln Co., MT.