Low Elevation
< 490 feet above mean sea level
Low Place
Vermilion River
Low Quad Name
Danville SE
Low PLSS
2-19-18N-10W
Low Geology
Cahokia Alluvium, river valley
High Elevation
> 790 feet above mean sea level
High Place
unnamed hilltop
High Quad Name
Collison
High PLSS
2-6-20N-13W
High Geology
Gifford Moraine
Area
891.67 square miles
Total Relief
300 feet
Percent Slope
0.89%