Andrews, D.A., Lambert, G.S., and Stose, G.W., 1944, Geologic map of Montana: U.S. Geological Survey, Oil and Gas Investigations Map OM-25, scale 1:500,000
Sheet 2 (in 2 sheets): West Sheet
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Andrews, D.A., Lambert, G.S., and Stose, G.W., 1944, Geologic map of Montana: U.S. Geological Survey, Oil and Gas Investigations Map OM-25, scale 1:500,000
Sheet 2 (in 2 sheets): West Sheet
|