Photograph collection, after 1978-before 1986, from the Copper Island Sentinel, a newspaper published weekly in Calumet, Michigan from 1978 to 1986.

Distribution of payroll records, 1920, 1926, of the Copper Range Railroad Company.

Papers, 1890-1966, documenting the Coughlin and Gray Family history in Isle Royale and the Keweenaw Peninsula of Michigan.

Satirical newspaper, "da Rutabaga," published by the Keweenaw Press of Houghton, Michigan, began publication in 2010.

Collection, 1971-2009, of slides, print photographs, and mounted images created and maintained by photographer, Dan Behnke.

Engineering field notes, circa 1916, from the Interstate Commerce Commission Bureau of Valuation's survey of railroad structures. Includes photocopies from the National Archives and Records Administration of building survey sheets with descriptions, photographs and floor and elevation plans of buildings owned by the Duluth, South Shore and Atlantic Railroad, such as the depot in Calumet originally constructed by the Mineral Range Railroad.

Correspondence, circa 1927 to circa 1940, of Endicott R. Lovell. Includes correspondence relating to Michigan College of Mining and Technology (later Michigan Technological University), University of Michigan, Phillips Exeter Academy, Calumet and Hecla Smelting Works, financial transactions and travel.

Records, 1875-1878, of the Franklin Mining Company in Hancock, Michigan. Includes two bound volumes of cost sheets for the mine, detailing the operational costs associated with the mine.

Collection, circa 1890s-2003, of the Gundlach family of Houghton, Michigan. Includes business papers and records from the Herman Gundlach, Inc. construction company and the Barbara Kettle Gundlach Shelter Home as well as personal papers, photograph albums, notebooks, clipping albums, audiovisual materials, and other printed ephemera.

Collection, undated, of material on the historic districts and buildings of Michigan's Upper Peninsula.