Geologic map showing the thickness and structure of the Anderson-Wyodak coal bed in the north half of the Powder River Basin, southeastern Montana and northeastern Wyoming

I-2094-A Geologic map showing the thickness and structure of the Anderson-Wyodak coal bed in the north half of the Powder River Basin, southeastern Montana and northeastern Wyoming, scale 1:2,000,000, 1990, ISBN 978-0-607-79262-1 Keywords: Coal, Geologic map, Bedrock, Powder river basin