I guess there's Tunnel Hill, which was held by Wheeler's cavalry, but it's an awfully exposed position. On paper, the Chetoogeta Mountain was great for stopping an advance from the west (Ringgold Gap), but it could be outflanked from the north. Not to mention that Johnston is quite concerned about the possibility of a thrust to Rome, which is what he was constantly watching for while McPherson went to Snake Creek Gap.
I am not sure if Davis was being honest or if this is true at all. Albert Castel has said that Davis was looking for a second star.
But from what I've read of "Jefferson Davis in Blue", Rome does not seem especially fortified, and it makes no mention of the claim either. One book even claims the earthworks were incomplete when Davis arrived.
The three forts do not even support each other. Fort Norton, the largest fortification, was located on the east bank of the Oostanaula River to protect the route to the city from Alabama. Fort Attaway was constructed on the opposite bank and a third, Fort Stovall, was constructed on the south bank of the Etowah River.