Low Elevation
< 535 feet above mean sea level
Low Place
Sangamon River
Low Quad Name
Edinburg
Low PLSS
3-18-14N-3W
Low Geology
Cahokia Alluvium, river valley
High Elevation
> 755 feet above mean sea level
High Place
unnamed hilltop
High Quad Name
Owaneco
High PLSS
3-25-11N-1W
High Geology
Hagarstown ridge (2 high points)
Area
707.56 square miles
Total Relief
240 feet
Percent Slope
0.50%