Surveyed in 1907-1908.;"Surveyed in cooperation with the State of Illinois."; (W 88⁰00ʹ00ʺ--W 87⁰45ʹ00ʺ/N 39⁰00ʹ00ʺ--N 38⁰45ʹ00ʺ);Relief shown by contours and spot heights.;1 map, colored;45 x 36 cm.;1:62,500
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/