1. Missouri-Illinois, Cape Girardeau quadrangle Maps University Of Illinois Urbana Champaign Public content 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.).