Lowest and Highest Points in Will County

Lowest and Highest Points in Will County
Low Elevation: 
<510 feet above mean sea level
Low Place: 
Des Plaines and Kankakee Rivers
Low Quad Name: 
Channahon and Wilmington
Low PLSS: 
3-31-34N-9E and 3-6-33N-9E
Low Geology: 
Cahokia Alluvium, river valley
High Elevation: 
>830 feet above mean sea level
High Place: 
unnamed hilltop
High Quad Name: 
Frankfort
High PLSS: 
3-19-34N-13E
High Geology: 
Wheaton Moraine
Area: 
841.22 square miles
Total Relief: 
320 feet
Percent Slope: 
0.84%
randomness