Overburden in the Rosebud-Robinson coal zone, Powder River Basin, Montana (rsovbg.shp)
This ArcView shapefile contains a polygon representation
of the overburden to the base of the Rosebud-Robinson
coal zone, Colstrip coalfield (Powder River Basin),
Montana. This theme was created specifically
for the National Coal Resources Assessment in the
Northern Rocky Mountains and Great Plains Region.