National Geologic Map Database
General Information
- Title: Structure, coal thickness, and overburden thickness of the Knobloch coal resource unit, Birney area, Big Horn, Rosebud, and Powder River Counties, Montana
- Author(s): Culbertson, W.C., and Saperstone, H.I.
- Publishing Organization: U.S. Geological Survey
- Series and Number: Coal Investigations Map C-112
- Publication Date: 1987
- Map Scale: 1:100,000
- Cross Section: None
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