Low Elevation
< 550 feet above mean sea level
Low Place
Kankakee River
Low Quad Name
Bonfield
Low PLSS
3-31-32N-11E
Low Geology
Equality Formation, Dolton Member, lakeshore deposits in river valley
High Elevation
> 740 feet above mean sea level
High Place
unnamed hilltop
High Quad Name
Beecher East
High PLSS
3-2-32N-14E
High Geology
West Chicago Moraine
Area
674.62 square miles
Total Relief
190 feet
Percent Slope
0.55%