Lowest and Highest Points in Cumberland County
Low elevation: <505 feet above mean sea level
Place: Embarras River
7.5' quadrangle name: Greenup
PLSS: 3-32-9N-9E
Geology: Cahokia Alluvium in river valley
High elevation: 675 feet above mean sea level
Place: Unnamed hilltop
7.5' quadrangle name: Neoga
PLSS: 3-10-10N-7E
Geology: Illinois Vandalia till upland?
Area: 342.94 square miles
Total relief (approximate): 170 feet
Average percent slope: 0.73%
Updated 9/29/2009 JKH