Lowest and Highest Points in Clark County

Lowest and Highest Points in Clark County
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%