We used to go drinking there in my wayward youth. I was interested in History even then and the damned thing was identical to one of those Neolithic constructs scattered around Europe.
For those interested there was, by rumor, a lot of virginity sacrificed on that formation. I will post a link.
The resemblance is so obvious it immediately struck the early colonists, but they were often too busy building 4000 year old colonial root cellars and carving Celtic Ogham inscriptions using only their plowshares. ;’) There’s a table rock on three supporting stones right up on Lookout Mountain as well.