Low Elevation
< 585 feet above mean sea level
Low Place
Mississippi River
Low Quad Name
Clifton NW
Low PLSS
4-34-23N-7E
Low Geology
Cahokia Alluvium in river valley
High Elevation
> 1060 feet above mean sea level
High Place
unnamed hilltop
High Quad Name
Brookville
High PLSS
4-32-25N-7E
High Geology
Glasford till over Ordovician dolomite
Area
462.70 square miles
Total Relief
475 feet
Percent Slope
2.54%