The selected location is:

The elevation is 581 m ( 1906 ft )
The gradient is: 0.5 percent
The aspect direction is: 270.0 degrees or W
The local roughness is: 0.5 or slight
The location as decimal degrees (X,Y;Z) = -100.1310, 45.3694; 581 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. Brown, Township of; South Dakota: Walworth Co. -100.1310, 45.3694 at a distance of 1 m
2. Albert Kulm Dam; South Dakota: Walworth Co. -100.1287, 45.3583 at a distance of 1248 m
3. Pero Creek head; -100.1707, 45.3711 at a distance of 3117 m
4. Old Zion Cemetery; South Dakota: Walworth Co. -100.1721, 45.3550 at a distance of 3597 m
5. Akaska; South Dakota: Walworth Co. -100.1207, 45.3325, ( 1768 ft ) at a distance of 4181 m
6. Akaska, Town of; South Dakota: Walworth Co. -100.1212, 45.3319 at a distance of 4239 m
7. Rieger Creek mouth; South Dakota: Walworth Co. -100.1671, 45.3264 at a distance of 5555 m
8. Hoffman Roadside Park; South Dakota: Walworth Co. -100.0385, 45.4242 at a distance of 9462 m
9. Hilde, Township of; South Dakota: Walworth Co. -100.1304, 45.4564 at a distance of 9668 m
10. Surrey, Township of; South Dakota: Walworth Co. -100.0071, 45.3694 at a distance of 9706 m

The 7.5 minute series topographic maps for that area