The selected location is:

The elevation is 494 m ( 1621 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) = -100.4971, 44.5617; 494 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 Northwestern Great Plains (less typical) 43
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Nearby named places (in order by distance)

1. Cow Creek Recreation Area; South Dakota: Sully Co. -100.4971, 44.5617 at a distance of 2 m
2. Okobojo Recreation Area; South Dakota: Sully Co. -100.5076, 44.5686 at a distance of 1133 m
3. Fielder Post Office (historical); South Dakota: Hughes Co. -100.5057, 44.5469 at a distance of 1783 m
4. Okobojo Creek mouth; South Dakota: Sully Co. -100.5176, 44.5692 at a distance of 1830 m
5. Spring Creek Recreation Area; South Dakota: Hughes Co. -100.4771, 44.5458 at a distance of 2377 m
6. Oko Bojou Islands (historical); South Dakota: Hughes Co. -100.5129, 44.5417 at a distance of 2555 m
7. Lewellyn Park, Township of; South Dakota: Sully Co. -100.5179, 44.5833 at a distance of 2913 m
8. Cow Creek mouth; South Dakota: Hughes Co. -100.4579, 44.5600 at a distance of 3120 m
9. Plum Creek mouth; South Dakota: Sully Co. -100.5296, 44.5908 at a distance of 4137 m
10. Lower Sully Landing (historical); South Dakota: Sully Co. -100.5515, 44.5569 at a distance of 4357 m

The 7.5 minute series topographic maps for that area