This would be it for me. I stumbled across this place while trout fishing in the Smokie Mountains. It is about three miles up Jakes creek at about the 3,000 ft elevation. There is no roads or any way in there other than by foot.
This was a private inholding in the park that the owners had to give up recently (last 5 or 10 years). I think they had a 50 year exemption or something. Apparently the park service is going to keep this place up because it had some recent repairs. the door was open so I went in and looked around it was a neat place about 100 yards off one of my favorite trout streams.