National Geologic Map Database
General Information
- Title: Maps showing coal-split boundaries, isopachs of coal splits, coal resources, and coal quality--Mammoth coal bed, Paleocene Tongue River Member of the Fort Union Formation, Bull Mountain coal field, south-central Montana
- Author(s): Connor, C.W.
- Publishing Organization: U.S. Geological Survey
- Series and Number: Coal Investigations Map C-126-B
- Publication Date: 1988
- Map Scale: 1:50,000
- Cross Section: None
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