Low Elevation
< 430 feet above mean sea level
Low Place
Wabash River
Low Quad Name
West Union
Low PLSS
2-4-8N-11W
Low Geology
Cahokia Alluvium, river valley
High Elevation
> 735 feet above mean sea level
High Place
unnamed hilltop
High Quad Name
Westfield East
High PLSS
2-21-12N-14W
High Geology
Nevins Moraine
Area
499.36 square miles
Total Relief
305 feet
Percent Slope
1.14%