The selected location is:

The elevation is 168 m ( 551 ft )
The gradient is: 0.0 percent
There is no aspect direction.
The local roughness is: 0.0 or flat
The location as decimal degrees (X,Y;Z) = -87.8619, 39.0781; 168 m

The state and county are Illinois: Crawford County 17033
The HUC is Embarras 05120112; Place point in HUC
The Omernik ecoregion is Central Corn Belt Plains (less typical) 54
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Nearby named places (in order by distance)

1. Prairie Grove Church; Illinois: Crawford Co. -87.8619, 39.0781 at a distance of 5 m
2. Onion Creek head; -87.8500, 39.0786 at a distance of 1029 m
3. Brush Creek head; -87.8647, 39.0583 at a distance of 2207 m
4. Prairie Church; Illinois: Crawford Co. -87.8492, 39.0558 at a distance of 2703 m
5. Dogwood; Illinois: Crawford Co. -87.8908, 39.0639 at a distance of 2956 m
6. Prairie School; Illinois: Crawford Co. -87.8539, 39.0492 at a distance of 3277 m
7. Robinson Oil Field; Illinois: Crawford Co. -87.8322, 39.0544 at a distance of 3673 m
8. Ridgeway Lake; Illinois: Crawford Co. -87.8233, 39.0967 at a distance of 3926 m
9. Ridgeway Lake Dam; Illinois: Crawford Co. -87.8233, 39.0967 at a distance of 3926 m
10. Dogwood Creek head; -87.8367, 39.1086 at a distance of 4030 m

The 7.5 minute series topographic maps for that area