United States Department of the Interior Geological Survey, Wind Ridge Quadrangle, Wind Ridge, Greene County, Pennsylvania, Map, 1964

United States Department of the Interior Geological Survey, Wind Ridge Quadrangle, Wind Ridge, Greene County, Pennsylvania, Map, 1964, Box: 123, Item: 318. 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/156042 Accessed November 23, 2024.