Lowest and Highest Points in Peoria County
Low elevation: <420 feet above mean sea level
Place: Illinois River
7.5' quadrangle name: Glasford
PLSS: 4-7-6N-6E
Geology: Cahokia Alluvium in river valley
High elevation: 830 feet above mean sea level
Place: unnamed hilltop
7.5' quadrangle name: Edelstein
PLSS: 4-33-11N-7E
Geology: Buda Moraine
Area: 623.69 square miles
Total relief (approximate): 410 feet
Average percent slope: 1.82%
Updated 10/1/2009 JKH