What landforms are in Illinois?

The state is divided into three main regions:

Central Plains:
The Central Plains region includes an area of rich farmland known as the Till Plains. These plains are part of the Midwestern Corn Belt, extending from Ohio to Kansas. About 90% of Illinois is covered by the Central Plains region. These gently rolling fertile plains were carved and leveled by glaciers during the Ice Age.


Great Lakes Plains:
This low flat stretch of land along Lake Michigan develops some small hills north and west of Chicago. The industrial area surrounding Chicago is part of the Great Lakes Plains. Once covered by Lake Michigan, this region has small hills, lakes, and marshes. Illinois has 63 miles of shoreline on Lake Michigan. The Shawnee Hills in the southern part of the state range from 300 to 1,065 feet above sea level. This is an area of forested hills, valleys, woods, and river bluffs.


Gulf Coastal Plains:
This is the land between the Ohio River on the east and the Mississippi River on the west and sometimes referred to as "Egypt" because of its resemblance to the Nile Delta.