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) = -90.2693, 39.9682; 183 m

The state and county are Illinois: Cass County 17017
The HUC is Lower Illinois-Lake Chautauqua 07130003; 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. Cass; Illinois: Cass Co. -90.2693, 39.9682, ( 600 ft ) at a distance of 6 m
2. Jules; Illinois: Cass Co. -90.2604, 39.9682, ( 614 ft ) at a distance of 759 m
3. Powell Cemetery; Illinois: Cass Co. -90.2704, 39.9612 at a distance of 789 m
4. Virginia Country Club; Illinois: Cass Co. -90.2793, 39.9708 at a distance of 905 m
5. Lost Creek head; -90.2534, 39.9632 at a distance of 1468 m
6. Union School; Illinois: Cass Co. -90.2682, 39.9825 at a distance of 1596 m
7. Cauby Cemetery; Illinois: Cass Co. -90.2584, 39.9851 at a distance of 2089 m
8. Tureman Cemetery; Illinois: Cass Co. -90.2768, 39.9468 at a distance of 2467 m
9. Clark Cemetery; Illinois: Cass Co. -90.2745, 39.9461 at a distance of 2489 m
10. Campbell School; Illinois: Cass Co. -90.2382, 39.9586 at a distance of 2860 m

The 7.5 minute series topographic maps for that area