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201. Illinois-Missouri, Chester quadrangle : topography

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1915. Geological Survey (U.S.). Contour interval 20 feet.;"Surveyed in 1912-1913.";"Surveyed in cooperation with the State of Illinois.";Relief shown by contours.;1 map, colored;4... Geological Survey (U.S.) and State Geological Survey (Urbana, Ill.).

202. Illinois-Missouri Hardin quadrangle

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1930. 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 1927.";Relief... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).

203. Illinois-Missouri, Jonesboro quadrangle

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1923. Geological Survey (U.S.). Contour interval 20 feet.;"Surveyed in 1918 and 1921";Relief shown by contours and spot heights.;1 map, colored;45 x 36 cm.;1:62,500. Geological Survey (U.S.), Geological Survey Division (Urbana, Ill.), and State of Missouri Bureau of Geology and Mines (Rolla, Mo.).

204. Illinois-Missouri, Nebo quadrangle.

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1930. 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 1926-1927.";R... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).

205. Illinois-Missouri, Pearl quadrangle.

Maps University Of Illinois Urbana Champaign Public content
1930. 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 1926-1927";Reli... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).

206. Illinois-Missouri, Quincy quadrangle.

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1945. Geological Survey (U.S.). Contour interval 20 feet.;"Surveyed in 1922 and 1940. Culture in Illinois partly revised in 1944";Relief shown by contours and spot heights.;1 map,... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).

207. Illinois-Missouri, Renault quadrangle.

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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.).

208. Illinois-Missouri, Thebes quadrangle

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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.).

209. Illinois-Waukegan, Waukegan quadrangle : topography

Maps University Of Illinois Urbana Champaign Public content
1908. Geological Survey (U.S.). Contour interval 10 feet.;"Surveyed in 1906.";"Surveyed in cooperation with the State of Illinois.";Relief indicated by contours and spot heights.;... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).

210. Illinois-Wisconsin, Belvidere quadrangle : topography

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1918. Geological Survey (U.S.). Surveyed in 1917.;Surveyed in cooperation with the War Department and the State of Illinois.";Relief shown by contours and spot heights.;1 map, col... Geological Survey (U.S.) and Geological Survey Division (Urbana, Ill.).