National Geologic Map Database
General Information
- Title: Structure contour map of the base of Mississippi rocks in the Williston basin and adjoining areas of Montana, North Dakota, South Dakota, and Wyoming
- Author(s): Kunkel, R.P.
- Publishing Organization: U.S. Geological Survey
- Series and Number: Oil and Gas Investigations Map OM-165
- Publication Date: 1954
- Map Scale: 1:1,000,000
- Cross Section: None
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* See base map disclaimer below
- 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.