National Geologic Map Database
General Information
- Title: Preliminary integrated geologic map databases for the United States: Minnesota, Wisconsin, Michigan, Illinois, and Indiana [Superseded by Horton and others, 2017, U.S. Geological Survey, Data Series DS-1052]
- Author(s): Nicholson, S.W., Dicken, C.L., Foose, M.P., and Mueller, Julie
- Publishing Organization: U.S. Geological Survey
- Series and Number: Open-File Report OF-2004-1355
- Publication Date: 2004
- Map Scale: 1:500,000
- Cross Section: None
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Additional Resources
- 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.