The selected location is:

The elevation is 216 m ( 709 ft )
The gradient is: 0.9 percent
The aspect direction is: 216.6 degrees or SW
The local roughness is: 0.5 or slight
The location as decimal degrees (X,Y;Z) = -88.9909, 39.7567; 216 m

The state and county are Illinois: Macon County 17115
The HUC is Upper Sangamon 07130006; Place point in HUC
The Omernik ecoregion is Central Corn Belt Plains (more typical) 54
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Nearby named places (in order by distance)

1. Spring Creek head; -88.9909, 39.7567 at a distance of 5 m
2. Snow Airport; Illinois: Macon Co. -88.9795, 39.7497, ( 728 ft ) at a distance of 1247 m
3. Lake Decatur; Illinois: Macon Co. -88.9668, 39.7500 at a distance of 2196 m
4. Lake Decatur Dam; Illinois: Macon Co. -88.9668, 39.7500 at a distance of 2196 m
5. Mosquito Creek head; -89.0023, 39.7356 at a distance of 2534 m
6. Elwin; Illinois: Macon Co. -88.9801, 39.7789, ( 716 ft ) at a distance of 2638 m
7. South Wheatland, Township of; Illinois: Macon Co. -88.9790, 39.7789 at a distance of 2672 m
8. WYDS-FM (Decatur); Illinois: Macon Co. -88.9912, 39.7858 at a distance of 3236 m
9. Spring Creek head; -89.0290, 39.7711 at a distance of 3635 m
10. Dry Branch head; -89.0095, 39.7267 at a distance of 3688 m

The 7.5 minute series topographic maps for that area