Lowest and Highest Points in Lee County
Low elevation: <640 feet above mean sea level
Place: Rock River
7.5' quadrangle name: Sterling
PLSS: 4-30-21N-8E
Geology: Cahokia Alluvium in river valley
High elevation: ~ 985 feet above mean sea level
Place: Unnamed hilltop
7.5' quadrangle name: Paw Paw
PLSS: 3-36-38N-2E
Geology: La Moille / Paw Paw Moraines
Area: 722.21 square miles
Total relief (approximate): 345 feet
Average percent slope: 0.95%
Updated 9/30/2009 JKH