National Geologic Map Database
General Information
- Title: Bedrock geologic map of the Port Wing, Solon Springs, and parts of the Duluth and Sandstone 30' x 60' quadrangles, Wisconsin and Minnesota [see GIS data]
- Author(s): Nicholson, S.W., Cannon, W.F., Woodruff, L.G., and DIcken, C.L.
- Publishing Organization: U.S. Geological Survey
- Series and Number: Scientific Investigations Map SIM-2869
- Publication Date: 2006
- Map Scale: 1:100,000
- Cross Section: Yes
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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.