The selected location is:

The elevation is 144 m ( 473 ft )
The gradient is: 0.8 percent
The aspect direction is: 154.5 degrees or SE
The local roughness is: 0.8 or slight
The location as decimal degrees (X,Y;Z) = -89.9882, 40.3497; 144 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 Interior River Lowland (less typical) 72
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Nearby named places (in order by distance)

1. Christian Church; Illinois: Mason Co. -89.9882, 40.3497, ( 472 ft ) at a distance of 5 m
2. McHarry Pond; Illinois: Mason Co. -89.9929, 40.3433 at a distance of 812 m
3. Quiver School; Illinois: Mason Co. -89.9976, 40.3450 at a distance of 953 m
4. Presbyterian Church; Illinois: Mason Co. -89.9679, 40.3494, ( 489 ft ) at a distance of 1724 m
5. Buzzville; Illinois: Mason Co. -89.9904, 40.3661, ( 491 ft ) at a distance of 1835 m
6. Chautaugua National Wildlife Refuge; Illinois: Mason Co. -90.0004, 40.3667 at a distance of 2158 m
7. Chautauqua, Lake; Illinois: Mason Co. -89.9959, 40.3714 at a distance of 2501 m
8. Coon School; Illinois: Mason Co. -89.9565, 40.3394 at a distance of 2923 m
9. Quiver Creek mouth; Illinois: Mason Co. -90.0234, 40.3531 at a distance of 3016 m
10. Eckard; Illinois: Mason Co. -89.9890, 40.3197, ( 475 ft ) at a distance of 3328 m

The 7.5 minute series topographic maps for that area