National Geologic Map Database
General Information
- Title: A three-dimensional geologic framework model of the northern Great Plains region of Montana, North Dakota, South Dakota, and Wyoming, USA
- Author(s): Spangler, L.R.
- Publishing Organization: U.S. Geological Survey
- Series and Number: Scientific Investigations Report 2026-5127
- Publication Date: 2026
- Map Scale: 1:500,000
- Cross Section: None
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Additional Resources
- Links and Downloads:
- Publication
- 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.