Lowest and Highest Points in Jefferson County
Low elevation:
<410 feet above mean sea level
Place: Rend Lake
7.5' quadrangle name: Waltonville
PLSS: 3-16-4S-2E
Geology: Lake in river valley
High elevation: >630 feet above mean sea level
Place: Unnamed hilltop
7.5' quadrangle name: Kell
PLSS: 3-2-1S-2E
Geology: Vandalia till upland over Pennsylvanian
Mattoon Formation Hagarstown ridge
Area: 577.55 square miles
Total relief (approximate): 220 feet
Average percent slope: 0.95%
Place: Rend Lake
7.5' quadrangle name: Waltonville
PLSS: 3-16-4S-2E
Geology: Lake in river valley
High elevation: >630 feet above mean sea level
Place: Unnamed hilltop
7.5' quadrangle name: Kell
PLSS: 3-2-1S-2E
Geology: Vandalia till upland over Pennsylvanian
Mattoon Formation Hagarstown ridge
Area: 577.55 square miles
Total relief (approximate): 220 feet
Average percent slope: 0.95%
Updated 05/26/2011 SLD