A Project of the Critical Trends Assessment Program
The Illinois Headwaters
An Inventory of the Region's Resources

state oultine with headwaters area highlighted



Published by the Illinois Department of Natural Resources Office of Realty and Environmental Planning with assistance from the Nature of Illinois Foundation

Preface

Shaded Relief Map

Land Cover Map

Illinois Natural Areas

Main Body

Sidebars
     The Grand Prairie
     The Middle Fork
     Drainage
     Geology
     Salines

Area at A Glance

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