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Federal
Mine and lease boundaries in the Green River Basin, Wyoming, 1999 National Coal Resource Assessment (grbleasg.shp)
Department of the Interior —
This ArcView shapefile contains a polygon representation of mine & lease boundaries in the Point of Rocks-Black Butte coalfield in the Greater Green River Basin,... -
Federal
Wyodak-Anderson mine and lease areas in the Powder River Basin, Wyoming and Montana (prbleasg.shp)
Department of the Interior —
This ArcView shapefile contains a representation of the mine and lease boundaries in the Powder River Basin. This theme was created specifically for the National Coal...