Geologic map of the Ontonagon and part of the Wakefield 30' x 60' quadrangles, Michigan; a digital representation of Map I-2499 (1995)

Online link http://pubs.er.usgs.gov/publication/ofr0188
Originators Cannon, William F.; Nicholson, Suzanne W.; Woodruff, Laurel G.; Hedgman, Cheryl A.; Schulz, Klaus J.; and Pimley, Shana G.
Publication U.S. Geological Survey Open-File Report 01-88