Lowest and Highest Points in Jefferson County

Lowest and Highest Points in Jefferson County
Low Elevation: 
<410 feet above mean sea level
Low Place: 
Rend Lake
Low Quad Name: 
Waltonville
Low PLSS: 
3-16-4S-2E
Low Geology: 
Lake in river valley
High Elevation: 
>630 feet above mean sea level
High Place: 
unnamed hilltop
High Quad Name: 
Kell
High PLSS: 
3-2-1S-2E
High Geology: 
Vandalia till upland over Pennsylvanian Mattoon Formation Hagarstown ridge
Area: 
577.55 square miles
Total Relief: 
220 feet
Percent Slope: 
0.95%