0.70 cubic feet : 2 manuscript boxes (letter size).
Inventory, 1998, of the underground metallic mines in Baraga, Dickinson, Gogebic, Houghton, Iron, Keweenaw, Marquette, and Ontonagon Counties. Under the direction of the Mineral Technology Research Group of the Michigan Technological University Mining Engineering Department, researchers and students worked on a project to produce an inventory of the abandoned underground metallic mines in Michigan. Over 800 mines were identified and over 2,000 shafts cataloged. Field inspections prioritized over 130 shafts, openings or cave-ins that needed attention.
A project to document abandoned underground mines in Michigan began when a $200,000 contract was awarded to Michigan Technological University (MTU) by the Michigan Department of Natural Resources (MDNR) in September of 1995. The objectives of the project were to conduct an inventory, document, and map abandoned underground mines in the State of Michigan and, based on field assessments, identify and rank mines having unsafe conditions. Information from field inspections was used to determine which shafts should be filled, capped, fenced or otherwise fixed to protect the public (excerpted from "Abandoned Mines," http://www.mg.mtu.edu/mining/abmine/mtrg.htm, accessed March 2011).
Some restrictions exist, see Archivist.
Inventory is available. Contact the staff at the Michigan Technological University Archives & Copper Country Historical Collections for assistance.