Mendon quadrangle, Illinois-Missouri : 15 minute series (topographic).
Contour interval 20 feet.;"Culture and drainage in part compiled from aerial photographs taken 1938. Topography by plane-table methods, 1946.";Relief shown by contours and spot heights.;1 map, colored;45 x 37 cm.;1:62,500
Geological Survey (U.S.)
Geological Survey (U.S.), Geological Survey Division (Urbana, Ill.), and Geological Survey and Water Resources (Rolla, Mo.)
The University of Illinois Map Library requests the following acknowledgement be included when using this Historical Map: Map provided courtesy of the Map Library at the University of Illinois at Urbana-Champaign.; No Copyright - United States; http://rightsstatements.org/vocab/NoC-US/1.0/