Lowest and Highest Points in Winnebago County
Low elevation:
<680 feet above mean sea level
Place: Rock River
7.5' quadrangle name: Kishwaukee
PLSS: 3-19-43N-1E
Geology: Cahokia Alluvium in river valley
High elevation: >980 feet above mean sea level
Place: Unnamed hilltop
7.5' quadrangle name: Durand
PLSS: 4-7-29N-10E
Geology: Thin Ogle till over Galena Platteville ridge
Area: 515.20 square miles
Total relief (approximate): 300 feet
Average percent slope: 1.73%
Place: Rock River
7.5' quadrangle name: Kishwaukee
PLSS: 3-19-43N-1E
Geology: Cahokia Alluvium in river valley
High elevation: >980 feet above mean sea level
Place: Unnamed hilltop
7.5' quadrangle name: Durand
PLSS: 4-7-29N-10E
Geology: Thin Ogle till over Galena Platteville ridge
Area: 515.20 square miles
Total relief (approximate): 300 feet
Average percent slope: 1.73%
Updated 05/27/2011 SLD