Low Elevation
< 590 feet above mean sea level
Low Place
Vermilion River
Low Quad Name
Streator South
Low PLSS
3-2-30N-3E
Low Geology
Cahokia Alluvium, river valley
High Elevation
> 835 feet above mean sea level
High Place
unnamed hilltop
High Quad Name
Chatsworth South
High PLSS
3-12-25N-7E
High Geology
Gifford Moraine
Area
1035.63 square miles
Total Relief
245 feet
Percent Slope
0.52%