Geologic map showing thickness of sedimentary rocks from ground surface to the top of the upper Cretaceous Pierre Shale in the north half of the Powder River Basin, southeastern Montana and northeastern Wyoming
Keyword(s):
1995 ◽
Keyword(s):
Thickness of Parkman Sandstone Member of the Upper Cretaceous Mesaverde Formation and the Redbird Silty Member of the Pierre Shale, Powder River basin, Wyoming and Montana
