The selected location is:

The elevation is 579 m ( 1900 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) = -100.1287, 45.3583; 579 m

The state and county are South Dakota: Walworth County 46129
The HUC is Lower Lake Oahe 10130105; Place point in HUC
The Omernik ecoregion is Northeastern Great Plains (less typical) 45
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Nearby named places (in order by distance)

1. Albert Kulm Dam; South Dakota: Walworth Co. -100.1287, 45.3583 at a distance of 1 m
2. Brown, Township of; South Dakota: Walworth Co. -100.1310, 45.3694 at a distance of 1246 m
3. Akaska; South Dakota: Walworth Co. -100.1207, 45.3325, ( 1768 ft ) at a distance of 2936 m
4. Akaska, Town of; South Dakota: Walworth Co. -100.1212, 45.3319 at a distance of 2993 m
5. Old Zion Cemetery; South Dakota: Walworth Co. -100.1721, 45.3550 at a distance of 3421 m
6. Pero Creek head; -100.1707, 45.3711 at a distance of 3585 m
7. Rieger Creek mouth; South Dakota: Walworth Co. -100.1671, 45.3264 at a distance of 4652 m
8. Surrey, Township of; South Dakota: Walworth Co. -100.0071, 45.3694 at a distance of 9607 m
9. Hoffman Roadside Park; South Dakota: Walworth Co. -100.0385, 45.4242 at a distance of 10174 m
10. Bangor Cemetery; South Dakota: Walworth Co. -100.0579, 45.4417, ( 1974 ft ) at a distance of 10799 m

The 7.5 minute series topographic maps for that area