Topographic map. Abilene 30' Quad (1 : 125000). U.S. Geological Survey: Topographic., 1894 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Carl Owen Dunbar Archives, 1914-1979MapsTexas.
Topographic map. Alexis, IL 15.0 Quad. (1 : 62500). U.S. Geological Survey: Topographic., 1925 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Carl Owen Dunbar Archives, 1914-1979MapsIllinois. Maps of Illinois, a few show bordering states.
Topographic map. Allentown, PA 15.0 Quad. (1 : 62500). U.S. Geological Survey: Topographic. 1894 (1912), 1894 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Carl Owen Dunbar Archives, 1914-1979MapsPennsylvania.
Topographic map. Alton, IL-MO Quad. (1 : 48000). U.S. Geological Survey: Topographic., 1927 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Carl Owen Dunbar Archives, 1914-1979MapsIllinois. Maps of Illinois, a few show bordering states.
Topographic map. Approach to Strait of Belle Isle, Newfoundland. U.S. Hydrographic Office: Hydrographic., 1913 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Carl Owen Dunbar Archives, 1914-1979MapsNewfoundland.
Topographic map. Ardmore, OK 30.0 Quad. (1 : 125000). U.S. Geological Survey: Topographic., 1901 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Carl Owen Dunbar Archives, 1914-1979MapsOklahoma.
Topographic map. Atoka, OK 30.0 Quad. (1 : 125000). U.S. Geological Survey: Topographic., 1900 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Carl Owen Dunbar Archives, 1914-1979MapsOklahoma.
Topographic map. Baldwin, IL 15.0 Quad. (1 : 62500). U.S. Geological Survey: Topographic., 1914 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Carl Owen Dunbar Archives, 1914-1979MapsIllinois. Maps of Illinois, a few show bordering states.
Topographic map. Bay of Islands, Lark Harbor, Newfoundland, U.S. Hydrographic Office: Hydrographic., 1903 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Carl Owen Dunbar Archives, 1914-1979MapsNewfoundland.
Topographic map. Bear Head to Cow Head, Newfoundland (1 : 42440). U.S. Hydrographic Office: Hydrographic., 1900 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Carl Owen Dunbar Archives, 1914-1979MapsNewfoundland.