Low Elevation
< 390 feet above mean sea level
Low Place
Fox River
Low Quad Name
Mount Erie
Low PLSS
3-13-2N-9E
Low Geology
Equality Formation, Carmi Member, lake bottom deposits in river valley
High Elevation
> 600 feet above mean sea level
High Place
unnamed hilltop
High Quad Name
Landes
High PLSS
2-29-4N-14W
High Geology
Vandalia till upland over Pennsylvanian Mattoon Formation
Area
358.02 square miles
Total Relief
210 feet
Percent Slope
0.77%