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This ArcView shapefile contains a representation of the overburden thckness above the Hanna 77 coal zone in the Hanna coalfield, Hanna Basin, Wyoming. This shapefile was created specifically for the National Coal Resource Assessment in the Northern Rocky Mountains and Great Plains Region.


    map background search result map search result map Overburden above the Hanna 77 coal zone Overburden above the Wyodak-Anderson coal zone in the Powder River Basin Overburden above the Hanna 77 coal zone Overburden above the Wyodak-Anderson coal zone in the Powder River Basin