Lowest and Highest Points in Edgar County
Low elevation: <510 feet above mean sea level
Places: Sugar and Brouilletts Creeks
7.5' quadrangle names: Dennison and St. Bernice
PLSS: 2-16-12N-10W and 2-4-14N-10W
Geology: Cahokia Alluvium in river valley
High elevation: 835 feet above mean sea level
Place: Unnamed hilltop
7.5' quadrangle name: Grandview
PLSS: 2-4-12N-13E
Geology: Westfield Moraine
Area: 616.99 square miles
Total relief (approximate): 325 feet
Average percent slope: 0.79%
Updated 9/30/2009 JKH