1943. Geological Survey (U.S.). Contour interval 20 feet.;"Surveyed in 1911 and 1913. Culture revised in part, 1940";"Surveyed in cooperation with the States of Illinois and Misso... Bureau of Geology and Mines (Rolla, Mo.), Geological Survey (U.S.), and Geological Survey Division (Urbana, Ill.).
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1934. Geological Survey (U.S.). 1 map, colored;Contour intervals 5 and 20 feet.;"Culture and drainage in part compiled from aerial photographs taken by Air Corps, U.S. Army";"Surv... War Dept., Corps of Engineers, U.S. Army (U.S.), Geological Survey Division (Urbana, Ill.), and Geological Survey (U.S.).
1925. Geological Survey (U.S.). Control in part by Mississippi River Commission.;"Surveyed in 1915 and 1922.";Relief shown by contours and spot heights.;1 map, colored;45 x 34 cm.... Bureau of Geology and Mines (Rolla, Mo.), Geological Survey (U.S.), and Geological Survey Division (Urbana, Ill.).
1931. Geological Survey (U.S.). Surveyed in 1927.;Relief shown by contours and spot heights.;Road classification, 1930.;1 map, colored;45 x 35 cm.;1:62,500. Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).
1924. Geological Survey (U.S.). Contour interval 20 feet.;"Surveyed in 1921-1922.";Relief shown by contours and spot heights.;1 map, colored;45 x 36 cm.;1:62,500. Bureau of Geology and Mines (Rolla, Mo.) and Geological Survey (U.S.).
1915. Geological Survey (U.S.). Contour interval 20 feet.;"Surveyed in 1911 and 1913.";"Surveyed in cooperation with the States of Missouri and Illinois.";Relief shown by contours... Bureau of Geology and Mines (Rolla, Mo.), Geological Survey (U.S.), and Geological Survey Division (Urbana, Ill.).
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 1921 and 1928... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill).
1916. Geological Survey (U.S.). Contour interval 20 feet.;"Surveyed in 1910 and 1914.";"Surveyed in cooperation with the State of Illinois.";Relief shown by contours and spot heig... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).
1933. 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 1923 and 1927";... Bureau of Geology and Mines (Rolla, Mo.), Geological Survey (U.S.), and Geological Survey Division (Urbana, Ill.).
1909. Geological Survey (U.S.). Contour interval 20 feet.;"Surveyed in 1907.";"Surveyed in cooperation with the State of Missouri.";Relief shown by contours and spot heights.;1 ma... Bureau of Geology and Mines (Rolla, Mo.) and Geological Survey (U.S.).
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