Low Elevation
< 510 feet above mean sea level
Low Place
Salt Creek and Sugar Creek
Low Quad Name
New Holland and Middleton
Low PLSS
3-30-20N-4W
Low Geology
Cahokia Alluvium, river valley
High Elevation
> 771 feet above mean sea level
High Place
Elkhart Hill
High Quad Name
Broadwell
High PLSS
3-18-18N-3W
High Geology
Le Roy Moraine
Area
612.32 square miles
Total Relief
261 feet
Percent Slope
0.67%