National Geologic Map Database
General Information
- Title: Bedrock geologic map of the Ashland and the northern part of the Ironwood 30' X 60' quadrangles, Wisconsin, and Michigan
- Author(s): Cannon, W.F., Woodruff, L.G., Nicholson, S.W., and Hedgman, C.A.
- Publishing Organization: U.S. Geological Survey
- Series and Number: Miscellaneous Geologic Investigations Map I-2566
- Publication Date: 1996
- Map Scale: 1:100,000
- Cross Section: Yes
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* See base map disclaimer below
Geologic units referred to in Geolex
- 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.