The selected location is:

The elevation is 152 m ( 499 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) = -90.3459, 39.9879; 152 m

The state and county are Illinois: Cass County 17017
The HUC is Lower Illinois 07130011; 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. Bluff Springs; Illinois: Cass Co. -90.3459, 39.9879, ( 500 ft ) at a distance of 6 m
2. Bluff Springs School; Illinois: Cass Co. -90.3457, 39.9800 at a distance of 872 m
3. McLane Cemetery; Illinois: Cass Co. -90.3351, 39.9856 at a distance of 954 m
4. Lee Cemetery; Illinois: Cass Co. -90.3484, 39.9750 at a distance of 1443 m
5. Beard Cemetery; Illinois: Cass Co. -90.3418, 40.0131 at a distance of 2825 m
6. Warrior School; Illinois: Cass Co. -90.3129, 39.9837 at a distance of 2856 m
7. Buck Cemetery; Illinois: Cass Co. -90.3323, 39.9594 at a distance of 3365 m
8. Arenz School; Illinois: Cass Co. -90.3859, 39.9797 at a distance of 3536 m
9. Brick School; Illinois: Cass Co. -90.3348, 40.0192 at a distance of 3607 m
10. Star School; Illinois: Cass Co. -90.3734, 40.0126 at a distance of 3607 m

The 7.5 minute series topographic maps for that area