A Project of the Critical Trends Assessment Program

The Illinois River Bluffs

An Inventory of the Region's Resources


state outline with region highlighted

Published by the Illinois Department of Natural Resources
Office of Realty and Environmental Planning


Shaded Relief Map

Land Cover Map

Illinois Natural Areas

Main Body

   Valley Geology
   Disappearing Ducks

   Backwater Lakes

Area at a Glance

Return to C2000 Archive