The Crandon Mine Reports provide researchers access to information about the Crandon Mine permit process that occurred from between 1976, when the Exxon Coal and Minerals Company discovered a zinc-copper ore body located in northeastern Wisconsin near the city of Crandon, to 2003, when the Nicolet Minerals Company withdrew its permit applications after purchase of the project lands by the Mole Lake Sakaogon Chippewa and the Forest County Potawatomi Tribes.

The physical documents in the Crandon Mine reports collection are located at the UW-Madison Steenbock Library, formerly part of the Wendt Library collection, and are comprised of 100 reports, occupying approximately 25 linear feet. A summary of the history of the mine permitting process is located on a website maintained by the Wisconsin Department of Natural Resources.