Tater Hill is located in McCaysville, Fannin County, Georgia (zip code 30555) which is not far from the North Carolina border. I grew up in McCaysville, at the foot of Tater Hill and so far as I know, it's the only hill of that name in the US. McCaysville is located in the foothills of the Blue Ridge Mountains, right on the Georgia/Tennesse boundry line. In fact, one side of the town is McCaysville, Ga and the other side of the town is Copperhill, Tennessee.
There was a Davis family who lived there during the same time as I, but I moved away in 1972. I attached a photo of "Tater Hill". The Fannin County web site is http://fannincountyga.org/