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) = -90.3162, 40.2911; 168 m

The state and county are Illinois: Fulton County 17057
The HUC is Lower Illinois-Lake Chautauqua 07130003; Place point in HUC
The Omernik ecoregion is Interior River Lowland (less typical) 72
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Nearby named places (in order by distance)

1. Whealdon School; Illinois: Fulton Co. -90.3162, 40.2911 at a distance of 5 m
2. Jake Creek mouth; Illinois: Fulton Co. -90.3198, 40.2867 at a distance of 573 m
3. South Branch Otter Creek mouth; Illinois: Fulton Co. -90.3457, 40.2758 at a distance of 3028 m
4. Union Chapel; Illinois: Fulton Co. -90.3451, 40.2719 at a distance of 3252 m
5. Squirrel Creek mouth; Illinois: Fulton Co. -90.2765, 40.3042 at a distance of 3676 m
6. Washington School; Illinois: Fulton Co. -90.3148, 40.3269, ( 633 ft ) at a distance of 3982 m
7. Freeman School; Illinois: Fulton Co. -90.3637, 40.2897, ( 618 ft ) at a distance of 4044 m
8. Summum; Illinois: Fulton Co. -90.2784, 40.2678 at a distance of 4122 m
9. Marion School; Illinois: Fulton Co. -90.3168, 40.2531, ( 642 ft ) at a distance of 4215 m
10. Pleasant Dale Church; Illinois: Fulton Co. -90.3629, 40.3125 at a distance of 4631 m

The 7.5 minute series topographic maps for that area