Collection, 1954-after 1982, of manuscripts based on civilian diver Carl Peterson's account of his participation in the Osceola Mine Dewatering Project. Also included are copies of photographs of the project and an article "Unwatering the Osceola Lode" (Kramer, A.S. et al. Reprinted from Mining Engineering, April 1956).

Records, 1972-1974, of Northern Technical Services, Inc. located in Laurium, Michigan. Includes a catalog, and supplements, for machined and fabricated replacement parts for the mining industry as well as a letter announcing a stockholders' meeting.

Oral history project, 2013-2015, capturing the memories of ten individuals who lived or worked in the industrial communities lining Torch Lake in Houghton County, Michigan in the middle 1900s.