The selected location is:

The elevation is 548 m ( 1798 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) = -100.2029, 44.6561; 548 m

The state and county are South Dakota: Sully County 46119
The HUC is Lower Lake Oahe 10130105; Place point in HUC
The Omernik ecoregion is Northeastern Great Plains (more typical) 45
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Nearby named places (in order by distance)

1. Clifton School; South Dakota: Sully Co. -100.2029, 44.6561, ( 1795 ft ) at a distance of 2 m
2. Clifton, Township of; South Dakota: Sully Co. -100.2129, 44.6708 at a distance of 1814 m
3. Warnecke Post Office (historical); South Dakota: Sully Co. -100.2098, 44.6397, ( 1780 ft ) at a distance of 1904 m
4. Sully County; South Dakota: Sully Co. -100.1671, 44.6861 at a distance of 4377 m
5. Goodwater School; South Dakota: Sully Co. -100.2276, 44.6203 at a distance of 4437 m
6. T R Baker Dam; South Dakota: Sully Co. -100.1971, 44.7100 at a distance of 6005 m
7. Sully Lake; South Dakota: Sully Co. -100.1971, 44.7100, ( 1739 ft ) at a distance of 6005 m
8. Warnes Slough; South Dakota: Sully Co. -100.2368, 44.6067 at a distance of 6115 m
9. Clifton (historical); South Dakota: Sully Co. -100.2426, 44.7042, ( 1730 ft ) at a distance of 6202 m
10. Carson (historical); South Dakota: Sully Co. -100.2898, 44.6567, ( 1750 ft ) at a distance of 6893 m

The 7.5 minute series topographic maps for that area