National Geologic Map Database
Product Description Page
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Title: Columnar sections of Mesozoic and Paleozoic rocks in the mountains of south-central Montana
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Author(s): Gardner, L.S., Hendricks, T.A., Hadley, H.D., and Rogers, C.P.
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Publishing Organization: U.S. Geological Survey
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Series and Number: Oil and Gas Investigations Chart OC-18
- Publication Date: 1945
- Map Scale: 1:1,500,000
- Cross Section: Yes
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.