Low Elevation
< 620 feet above mean sea level
Low Place
Embarras River
Low Quad Name
Oakland
Low PLSS
3-5-14N-10E
Low Geology
Cahokia Alluvium, river valley
High Elevation
> 720 feet above mean sea level
High Place
unnamed hilltop
High Quad Name
Newman
High PLSS
2-5-16N-14W
High Geology
West Ridge Moraine
Area
412.83 square miles
Total Relief
100 feet
Percent Slope
0.40%