Illinois-Wisconsin (Winnebago County), Rockford quadrangle : topography
Description
Contour interval 20 feet.;"Surveyed in 1917.";"Surveyed in cooperation with the War Department and the State of Illinois.";Relief shown by contours and spot heights.;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.), War Dept., Corps of Engineers, U.S. Army (U.S.)
Temporal Coverage
1918
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/
Geological Survey (U.S.) (n.d.). Illinois-Wisconsin (Winnebago County), Rockford quadrangle : topography. Geological Survey (U.S.), Geological Survey Division (Urbana, Ill.), War Dept., Corps of Engineers, U.S. Army (U.S.). https://digital.library.illinois.edu/items/9ff421b0-994e-0134-2096-0050569601ca-3 (map)