United States Department of the Interior, United States Geological Survey, State of West Virginia Geological Survey, Topographic Contour Maps of Smithburg, Salem, and Wolf Summit Quadrangles, 1961–1976

United States Department of the Interior, United States Geological Survey, State of West Virginia Geological Survey, Topographic Contour Maps of Smithburg, Salem, and Wolf Summit Quadrangles, 1961–1976, Box: 97, Item: 217. Institute for the History of Technology and Industrial Archaeology Records, A&M 3936. West Virginia and Regional History Center. https://archives.lib.wvu.edu/repositories/2/archival_objects/155941 Accessed November 22, 2024.