Geologic map of the Big Sheep Mountain quadrangle, Prairie County, Montana.

Bibliographic Details
Corporate Authors:	Geological Survey (U.S.), Montana Bureau of Mines and Geology
Other Authors:	Colton, Roger B. (Roger Burnham), 1924-, McGraw, J. P., Bozeman, D. K.
Format:	Government Document Microform Map
Language:	English
Published:	[Reston, Va.] : The Survey ; 1994.
Series:	U.S. Geological Survey open-file report ; 93-529.
Subjects:	Geology > Montana > Prairie County > Maps.