The selected location is:

The elevation is 549 m ( 1801 ft )
The gradient is: 0.8 percent
The aspect direction is: 92.5 degrees or E
The local roughness is: 0.4 or slight
The location as decimal degrees (X,Y;Z) = -100.1671, 44.6861; 549 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. Sully County; South Dakota: Sully Co. -100.1671, 44.6861 at a distance of 2 m
2. Sully Lake; South Dakota: Sully Co. -100.1971, 44.7100, ( 1739 ft ) at a distance of 3564 m
3. T R Baker Dam; South Dakota: Sully Co. -100.1971, 44.7100 at a distance of 3564 m
4. Clifton, Township of; South Dakota: Sully Co. -100.2129, 44.6708 at a distance of 4011 m
5. Clifton School; South Dakota: Sully Co. -100.2029, 44.6561, ( 1795 ft ) at a distance of 4380 m
6. Nelson Landing Strip; South Dakota: Sully Co. -100.1087, 44.7042, ( 1900 ft ) at a distance of 5046 m
7. Warnecke Post Office (historical); South Dakota: Sully Co. -100.2098, 44.6397, ( 1780 ft ) at a distance of 6170 m
8. Clifton (historical); South Dakota: Sully Co. -100.2426, 44.7042, ( 1730 ft ) at a distance of 6313 m
9. Goodwater School; South Dakota: Sully Co. -100.2276, 44.6203 at a distance of 8748 m
10. Hartford, Township of; South Dakota: Sully Co. -100.2129, 44.7583 at a distance of 8804 m

The 7.5 minute series topographic maps for that area