1956. Geological Survey (U.S.). Culture and drainage in part compiled from aerial photographs taken 1946 and 1953. Topography by plane-table surveys 1954-1955.;Relief shown by con... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).
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1956. Ohio State University. Institute of Geodesy, Photogrammetry and Cartography. Sponsored by the Development Fund, the Graduate School and the Department of Geology. The Anomalies refer to the International Gravity Formula. by ... Ohio. Division of Geological Survey.
1956. Scale approximately 1:100,000; Location map on verso.
1956. Patton, John B. (John Barratt), 1915-. Base from Map of Indiana, 1950 edition, published by the U.S. Geological Survey. Minor revisions and additions made from Indiana Department of Cons... Indiana Geological Survey.
1956. Bier, James Allen. Based primarily on U.S.G.S. topographic quadrangles.;Black line drawn map of Illinois;Includes "limit of glaciation" line; Physiographic divisions ...
1956. Map showing the pierhead and bulkhead lines along the beach thoroughfare of Margate City, N.J.
1956. Four copies of a map showing pierhead and bulkhead lines on Beach Thorofare in Margate City.
1956. Geological Survey (U.S.). Contour interval 20 feet.;"Culture and drainage in part compiled from aerial photographs taken 1938. Topography by plane-table methods, 1946.";Reli... Geological Survey (U.S.), Geological Survey Division (Urbana, Ill.), and Geological Survey and Water Resources (Rolla, Mo.).
1956. Geological Survey (U.S.). Contour interval 10 feet.;"Culture and drainage in part compiled from aerial photographs taken 1948. Topography by plane-table surveys 1934-1935 an... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).
1956. Geological Survey (U.S.). Contour interval 10 feet.;"Culture and drainage in part compiled from aerial photographs taken 1953-1954. Topography by planetable surveys 1955-195... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).