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Geologic map and coal sections of the Pine Butte School quadrangle, Big Horn County, Montana
Pine Butte School quadrangle, Big Horn County, Montana
1 map ; on sheet 76 x 102 cm. + 1 sheet (76 x 102 cm.)
W.J. Mapel ; Department of the Interior, United States Geological Survey.
Relief shown by contours and spot heights.
Ancillary sheet includes coal sections, correlation lines, and tables.
Miscellaneous field studies ; map MF-1014