Topographic map. Nineveh, NY 15.0 Quad. (1 : 62500). U.S. Geological Survey: Topographic., 1905 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Hugo R. Greiner Archives, 1885-1941Maps, 1895-19411895-1910.
Topographic map. North East, PA-NY 15.0 Quad. (1 : 62500). U.S. Geological Survey: Topographic. 1915 (1945), 1915 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Hugo R. Greiner Archives, 1885-1941Maps, 1895-19411911-1920.
Topographic map. Oil City, PA 15.0 Quad. (1 : 62500). U.S. Geological Survey: Topographic., 1924 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Hugo R. Greiner Archives, 1885-1941Maps, 1895-19411921-1930.
Topographic map. Olean, NY 7.5 Quad. (1 : 24000). U.S. Geological Survey: Topographic. 1961 (1980), 1961 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Hugo R. Greiner Archives, 1885-1941Maps, 1895-19411941-1961.
Topographic map. Perrysburg, NY 7.5 Quad. (1 : 24000). U.S. Geological Survey: Topographic. 1954 (1979), 1954 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Hugo R. Greiner Archives, 1885-1941Maps, 1895-19411941-1961.
Topographic map. Ramseyville, PA 15.0 Quad. (1 : 62500). U.S. Geological Survey: Topographic (Advance Sheet)., 1919 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Hugo R. Greiner Archives, 1885-1941Maps, 1895-19411911-1920.
Topographic map. Randolph, NY 15.0 Quad. (1 : 62500). U.S. Geological Survey: Topographic. 1923 (1945), 1923 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Hugo R. Greiner Archives, 1885-1941Maps, 1895-19411921-1930.
Topographic map. Salamanca, NY 15.0 Quad. (1 : 62500). U.S. Geological Survey: Topographic. 1900 (1942), 1900 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Hugo R. Greiner Archives, 1885-1941Maps, 1895-19411895-1910.
Topographic map. Sayre, PA 15.0 Quad. (1 : 62500). U.S. Geological Survey: Topographic (Advance Sheet)., 1928 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Hugo R. Greiner Archives, 1885-1941Maps, 1895-19411921-1930.
Topographic map. Sheffield, NY 15.0 Quad. (1 : 62500). U.S. Geological Survey: Topographic., 1941 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Hugo R. Greiner Archives, 1885-1941Maps, 1895-19411941-1961.