Low Elevation
< 600 feet above mean sea level
Low Place
Sugar Creek
Low Quad Name
Armington
Low PLSS
3-31-22N-1W
Low Geology
Cahokia Alluvium and till in river valley
High Elevation
> 950 feet above mean sea level
High Place
unnamed hilltop
High Quad Name
Saybrook
High PLSS
2-6-23N-6E
High Geology
Fletcher / Eureka / Normal Moraine complex
Area
1174.05 square miles
Total Relief
350 feet
Percent Slope
0.75%