Geological Survey (U.S.)Contour interval 5 feet.;"Topography by Corps of Engineers...1930-39. Revised...1932, 1935 and 1939.";Relief shown by contours and spot heights.;1 map, colored;45 x 36 cm.;1:62,500JPEG2000https://digital.library.illinois.edu/items/a174ecc0-994e-0134-2096-0050569601ca-3engU.S. Army, War CollegePublicMissouri-Illinois, Charleston quadrangle : grid zone 'C'MapsIllinoisMissouri1941University of Illinois Urbana-Champaign