National Geologic Map Database
General Information
- Title: Maps showing thickness and general distribution of Mesozoic and Paleozoic rocks in south-central Montana
- Author(s): Rogers, C.P., Gardner, L.S., and Hadley, H.D.
- Publishing Organization: U.S. Geological Survey
- Series and Number: Oil and Gas Investigations Map OM-43
- Publication Date: 1945
- Map Scale: 1:1,330,560
- Cross Section: Yes
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- For more information, please contact:
- U.S. Geological Survey
- USGS Information Services
- Box 25286
- Denver, CO 80225
- Phone: (303) 202-4700 or 1-888-ASK-USGS
- Fax: (303) 202-4710
* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.