Contour interval 20 feet.;"Surveyed in 1914.";"Surveyed in cooperation with the State of Illinois.";Relief shown by contours.;1 map, colored;45 x 36 cm.;1:62,500
Creator
Geological Survey (U.S.)
Publisher
Geological Survey (U.S.), State Geological Survey (Urbana, Ill.)
Temporal Coverage
1924
Rights
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/