Contour interval 20 feet.;"Surveyed in 1915-1916.";"Surveyed in cooperation with the States of Illinois and Missouri."; (W 89⁰45ʹ00ʺ--W 89⁰30ʹ00ʺ/N 38⁰00ʹ00ʺ--N 37⁰45ʹ00ʺ);Relief shown by contours and spot heights.;1 map, colored;45 x 36 cm.;1:62,500
Creator:
Geological Survey (U.S.)
Publisher:
Geological Survey Division (Urbana, Ill.), State of Missouri Bureau of Geology and Mines (Rolla, Mo.), and Geological Survey (U.S.)
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/