Records, 1897-1988, of the Department of Geology and Geological Engineering at Michigan Technological University. Includes correspondence, departmental annual reports, faculty publications, photographs and other printed ephemera. Also contains files on the Institute of Lake Superior Geology as well as "A History of the Geological Department of the Michigan Technological University 1886-1990" by Paul Zimmer. The bulk of this collection is from 1941-1981.