Contour interval 20 feet.;"Surveyed in 1921.";Relief shown in contours.;1 map, colored;45 x 34 cm.;1:62,500
Creator
Geological Survey (U.S.)
Publisher
Geological Survey (U.S.), Geological Survey Division (Urbana, Ill.), Geological and Natural History Survey (Madison, Wis.)
Temporal Coverage
1950
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/