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Geology of the northern Powder River Basin, Montana (prbngeolg.shp)

Published by U.S. Geological Survey | Department of the Interior | Catalog Last Checked: May 05, 2026 at 10:07 PM | Dataset Last Updated: May 25, 2021 at 12:00 AM
This ArcView shapefile contains a polygon representation of the geology in the northern part of the (Montana) Powder River Basin. This theme was created specifically for the National Coal Resources Assessment in the Northern Rocky Mountains and Great Plains Region.

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