Low Elevation
< 420 feet above mean sea level
Low Place
Illinois River
Low Quad Name
Bedford
Low PLSS
3-32-13N-13W
Low Geology
Cahokia Alluvium, river valley
High Elevation
> 690 feet above mean sea level
High Place
unnamed hilltop
High Quad Name
Bedford
High PLSS
3-35-13N-13W
High Geology
Loess over Vandalia till uplands
Area
250.06 square miles
Total Relief
270 feet
Percent Slope
1.32%