Lowest and Highest Points in Iroquois County
Low elevation: <605 feet above mean sea level
Place: Iroquois River
7.5' quadrangle name: Kankakee
PLSS: 2-15-29N-13W
Geology: Henry formation outwash in river valley
High elevation: >820 feet above mean sea level
Place: Unnamed hilltop
7.5' quadrangle name: Stockland
PLSS: 2-23-24N-11W
Geology: Chatsworth Moraine
Area: 1,108.09 square miles
Total relief (approximate): 215 feet
Average percent slope: 0.44%
Updated 9/30/2009 JKH