Assessment of coal geology, resources, and reserve base in the Powder River Basin, Wyoming and Montana
We estimated in-place resources of 1.07 trillion short tons of coal in this area using a geology-based assessment methodology. Of that total, recoverable coal was 162 billion tons, 25 billion economically recoverable.
U.S. Geological Survey Fact Sheet 2012-3143
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- States or counties
Big Horn, Campbell, Converse, Crook, Custer, Johnson, Niobrara, Powder River, Rosebud, Sheridan, Treasure, Weston
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