Seth, you are right over the Mountain from me. BTW - I sent you a reply to your PM.
Sorry, I don't have any news regarding Pigeon Water Cave. I will give you my thoughts on it however. I believe it to be Cornstalk's cache of his "share" from helping out Swift and others. The reason I say this is that people close to the find mentioned a carving of a cornstalk on the cave's entrance. I am sure if anyone has any new information, it would be Mrs. Spears from KY.
I do have some old information about this "find" that I have shared with Ralph Hurst and will have in my book as well. From my sources, there were a couple others involved in this "find" at Pigeon Water and there might have been more silver than once stated. Also, I have some information I have not shared with anyone about some other Swift related cache finds and will even give my best guesses on WHO found them (from my research) - that is if the publisher says it is OK (as I don't want to be sued by their relatives, since they are now deceased).
BTW - Maybe you know my uncle - he is the barber in Pound (Arnold Cantrell)? In fact, he is one of the reasons I started searching for the mines, as he has someone who does work at his home who claimed he was going to find all this Swift Silver and was close. I told my Uncle that it is LONG GONE. Then, later I became disabled (heart problems and back/hip/leg problems). The doctors all said I needed to walk. Well, instead of walking around a boring track, I decided to get a metal detector and detect the mountains. After not finding much of anything except for an old melted inkwell inside the chimney of an old farm house, I decided to pursue a "known treasure". I wanted to hunt for some Civil War caches in TN I had read about. However, I couldn't drive there everyday. I then decided on Swift, since the mines/caches were suppose to be in my own back yard. To make a long story (that I will go into detail about in my book) short, I was able to find Swift's Principal Mines and furnace rockhouses he and Montgomery worked!