Contour interval 5 and 20 feet.;"Culture and drainage in part compiled from aerial photographs taken by Air Corps, U.S. Army.";"Missouri part surveyed in cooperation with Corps of Engineers, U.S. Army.";"Surveyed in 1926-1929 and 1931.";Relief shown by contours and spot heights.;1 map, colored;51 x 36 cm.;1:62,500