The selected location is:

The elevation is 147 m ( 482 ft )
The gradient is: 0.1 percent
The aspect direction is: 110.6 degrees or E
The local roughness is: 0.4 or slight
The location as decimal degrees (X,Y;Z) = -89.9679, 40.3495; 147 m

The state and county are Illinois: Mason County 17125
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. Presbyterian Church; Illinois: Mason Co. -89.9679, 40.3494, ( 489 ft ) at a distance of 6 m
2. Coon School; Illinois: Mason Co. -89.9565, 40.3394 at a distance of 1478 m
3. Christian Church; Illinois: Mason Co. -89.9882, 40.3497, ( 472 ft ) at a distance of 1726 m
4. McHarry Pond; Illinois: Mason Co. -89.9929, 40.3433 at a distance of 2232 m
5. Quiver School; Illinois: Mason Co. -89.9976, 40.3450 at a distance of 2572 m
6. Buzzville; Illinois: Mason Co. -89.9904, 40.3661, ( 491 ft ) at a distance of 2660 m
7. Ebenezer School; Illinois: Mason Co. -89.9507, 40.3708 at a distance of 2784 m
8. Quiver Creek head; -89.9570, 40.3253 at a distance of 2838 m
9. Chautaugua National Wildlife Refuge; Illinois: Mason Co. -90.0004, 40.3667 at a distance of 3360 m
10. Walker School; Illinois: Mason Co. -89.9737, 40.3192 at a distance of 3396 m

The 7.5 minute series topographic maps for that area