Was there a clue that led your source to this cave or did he stumble across it. By the way, don't answer any questions that might pinpoint your area. I don't want to know where it is, I just want to help with your search.It goes through the ridge to the next valley, another even steeper named ridge runs parallel with the first, less than a mile south in the same direction, There was an intersection of wagon roads on the opposite bank of the creek from the stone. The first road I mentioned runs east/west along the foot of the ridges and the other runs north/south through the gap in first ridge into the enclosed valley to the south and makes it's way up the steeper ridge on the long forgotten road to an area I have been told has a large stone monument stacked into a bench or stone henge shaped formation. I have been told that inside this enclosed valley is a small bluff with a cave where a very very old glass bottle still full of liquor and some very old firearms were found. My source said he would not search any deeper because of the terrifying amount of snakes he came across in and around the cave!