USGS: Science Topics: Big Horn

Science Topics

Big Horn

county

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Assessment of coal geology, resources, and reserve base in the Powder River Basin, Wyoming and Montana [More info]: 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.

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U.S. Department of the Interior | U.S. Geological Survey
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