The selected location is:

The elevation is 640 m ( 2100 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) = -99.9898, 45.0208; 640 m

The state and county are South Dakota: Potter County 46107
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. Gettysburg, Township of; South Dakota: Potter Co. -99.9898, 45.0208 at a distance of 2 m
2. Gettysburg; South Dakota: Potter Co. -99.9557, 45.0117, ( 2061 ft ) at a distance of 2873 m
3. Gettysburg, City of; South Dakota: Potter Co. -99.9540, 45.0067 at a distance of 3229 m
4. Artichoke Creek head; -99.9465, 45.0414 at a distance of 4108 m
5. Gettysburg Radar Station; South Dakota: Potter Co. -99.9565, 45.0500, ( 2220 ft ) at a distance of 4171 m
6. Potter County; South Dakota: Potter Co. -99.9504, 45.0500 at a distance of 4490 m
7. Gettysburg Municipal Airport; South Dakota: Potter Co. -99.9521, 44.9900, ( 2055 ft ) at a distance of 4535 m
8. Sacred Heart Cemetery; South Dakota: Potter Co. -99.9382, 44.9983 at a distance of 4777 m
9. Gettysburg Cemetery; South Dakota: Potter Co. -99.9204, 45.0150, ( 2072 ft ) at a distance of 5509 m
10. Grouse Creek, Township of; South Dakota: Lyman Co. -99.9448, 44.9778 at a distance of 5954 m

The 7.5 minute series topographic maps for that area