Lowest and Highest Points in Perry County
Low elevation: <370 feet above mean sea level
Place: Beaucoup Creek
7.5' quadrangle name: Vergennes
PLSS: 3-31-6S-2W
Geology: Cahokia Alluvium and Equality Carmi in river valley
High elevation: 580 feet above mean sea level
Place: unnamed hilltop
7.5' quadrangle name: Coulterville
PLSS: 3-22-4S-4W
Geology: Thin Vandalia Till over Pennsylvanian Modesto Formation
Area: 442.30 square miles
Total relief (approximate): 210 feet
Average percent slope: 0.73%
Updated 10/1/2009 JKH