By Delorme 2006 1 inch = 2.36
Miles Item # HMIL1003 ISBN 9780899333212
Topographic maps for the entire state in book form, with unequaled backroad detail!
Ideal for outdoor recreation, reference, business, engineering and emergency services. - 15.5x11 inches.
More Info: State / Province / Region Atlas, soft cover, saddle-stitched Includes Index With Inset Map Plus GPS Info In English
Illinois Atlas
& Gazetteer