Coal exploratory holes drilled in 1980 in the Birney 1 degree x 2 degrees quadrangle, Powder River and Big Horn Counties, Montana
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Geology topics
Publications and source records attributed to W.C. Culbertson.
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Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.