Topographic map. Remsen, NY 7.5 Quad. (1 : 24000). U.S. Geological Survey: Topographic., 1955 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Division of Invertebrate Paleontology Archives, 1861-2014MapsUSA.
Topographic map. Rouses Point, NY-VT 15.0 Quad. (1 : 62500). U.S. Geological Survey: Topographic. 1907 (1921), 1907 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Division of Invertebrate Paleontology Archives, 1861-2014MapsUSA.
Topographic map. San Ysidro, N. Mex. 15.0 Quad. (1 : 62500). U.S. Geological Survey: Topographic., 1939 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Division of Invertebrate Paleontology Archives, 1861-2014MapsUSA.
Topographic map. San Ysidro, N. Mex. 15.0 Quad. (1 : 62500). U.S. Geological Survey: Topographic. Annotated., 1943 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Division of Invertebrate Paleontology Archives, 1861-2014MapsUSA.
Topographic map. Seboomook Lake, Maine 15-min Quad, 1954 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Division of Invertebrate Paleontology Archives, 1861-2014MapsUSA.
Topographic map. Slatington, PA 15.0 Quad. (1 : 62500). U.S. Geological Survey: Topographic. 1902 (1924), 1902 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Division of Invertebrate Paleontology Archives, 1861-2014MapsUSA.
Topographic map. St Albans, VT 15.0 Quad. (1 : 62500). U.S. Geological Survey: Topographic. 1916 (1931), 1916 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Division of Invertebrate Paleontology Archives, 1861-2014MapsUSA.
Topographic map. Staunton Folio, VA-WV (1 : 125000); Folio 14, 1894 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Division of Invertebrate Paleontology Archives, 1861-2014MapsUSA.
Topographic map. St Mary's County, MD 15 Quad. (1 : 62500). U.S. Geological Survey: Topographic., 1972 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Division of Invertebrate Paleontology Archives, 1861-2014MapsUSA.
Topographic map. Stratford Hall, VA-MD 7.5 Quad. (1 : 24000). U.S. Geological Survey: Topographic., 1968 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Division of Invertebrate Paleontology Archives, 1861-2014MapsUSA.