Bedrock geologic map of the Ashland and the northern part of the Ironwood 30 min X 60 min quadrangles, Wisconsin and Michigan

Online link http://ngmdb.usgs.gov/Prodesc/proddesc_13052.htm
Originators Cannon, William F.; Woodruff, Laurel G.; Nicholson, Suzanne W.; and Hedgman, Cheryl A.
Publication U.S. Geological Survey Miscellaneous Investigations Series Map I-2566

Related topics

Quadrangles

States or counties