1932. Geological Survey (U.S.). Contour interval 20 feet;"Culture and drainage in part compiled from aerial photographs taken by Air Corps, U.S. Army.";"Surveyed in 1926 and 1928"... Geological Survey (U.S.), Geological Survey Division (Urbana, Ill.), and Kentucky Geological Survey (Lexington, Ky.).
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1929. Geological Survey (U.S.). Contour interval 20 feet.;"Culture and drainage in part compiled from aerial photographs taken by Air Corps, U.S. Army";"Surveyed in 1926";Relief s... Geological Survey (U.S.), Geological Survey Division (Urbana, Ill.), and Kentucky Geological Survey (Lexington, Ky.).
1929. Geological Survey (U.S.). Contour interval 20 feet.;"Illinos culture and drainage in part compiled from aerial photographs taken by Air Corps, U.S. Army";"Surveyed in 1926";... Geological Survey (U.S.), Geological Survey Division (Urbana, Ill.), and Kentucky Geological Survey (Lexington, Ky.).
1689. Coronelli, Vincenzo, 1650-1718. Ferro.;Relief shown pictorially.;1 map, hand colored;43 x 59 cm.;ca. 1:14,000,000. Nolin (Paris).
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 ...
1952. Geological Survey (U.S.). Contour interval 10 feet.;"Culture and drainage in part compiled from aerial photographs taken 1940. Topography by plane-table surveys 1930 and 195... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).
1943. Geological Survey (U.S.). Contour interval 10 feet.;"Surveyed in 1929 and 1939-1940"; (W 88⁰15ʹ00ʺ--W 88⁰00ʹ00ʺ/N 39⁰15ʹ00ʺ--N 39⁰00ʹ00ʺ);Relief shown by contours and spot h... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).
1720. [creator not identified]. Het Wapen van de Compagnie.;Relief shown pictorially.;1 map;18 x 15 cm.;ca. 1:10,000,000. [S.l. : s.n.].
1863. Chicago and North Western Railway Company.
1818. Melish, John, 1771-1822. Entered according to Act of Congress the 16th day of April 1818.;Checklist of printed maps of the Middle West to 1900, No. 4-1408.;Notes on land su... John Melish & Saml. Harrison (Philadelphia).