The selected location is:

The elevation is 183 m ( 600 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) = -89.1393, 39.5997; 183 m

The state and county are Illinois: Christian County 17021
The HUC is South Fork Sangamon 07130007; 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. Brushy Branch mouth; Illinois: Christian Co. -89.1393, 39.5997 at a distance of 5 m
2. Brown Branch mouth; Illinois: Christian Co. -89.1282, 39.6081 at a distance of 1338 m
3. Old Stonington Church; Illinois: Christian Co. -89.1487, 39.6114 at a distance of 1533 m
4. Old Stonington Cemetery; Illinois: Christian Co. -89.1604, 39.6200 at a distance of 2895 m
5. Oak Branch mouth; Illinois: Christian Co. -89.1009, 39.6072 at a distance of 3404 m
6. Lin Branch mouth; Illinois: Christian Co. -89.1887, 39.5856 at a distance of 4520 m
7. McChristy Airport; Illinois: Christian Co. -89.1445, 39.6431, ( 630 ft ) at a distance of 4844 m
8. Prairieton, Township of; Illinois: Christian Co. -89.0837, 39.6117 at a distance of 4960 m
9. Long Cemetery; Illinois: Christian Co. -89.1479, 39.5547 at a distance of 5046 m
10. Stonington Cemetery; Illinois: Christian Co. -89.1965, 39.6150 at a distance of 5199 m

The 7.5 minute series topographic maps for that area