Lowest and Highest Points in Fulton County
Low elevation: <435 feet above mean sea level
Place: Illinois River
7.5' quadrangle name: Havana
PLSS: 4-20-4N-4E
Geology: Cahokia Alluvium in river valley
High elevation: >780 feet above mean sea level
Place: Unnamed hilltop
7.5' quadrangle name: Farmington West
PLSS: 4-28-8N-4E
Geology: Radnor till, possible moraine
Area: 873.68 square miles
Total relief (approximate): 345 feet
Average percent slope: 1.91%
Updated 9/30/2009 JKH