Bill Gibson, in the video I posted, said there was a boulder with or of silver on LD Creek. He went back for it and it was gone. He said someone must have used heavy equipment to remove it from where it was. Other reports from that area say that back in the early 1970s there was a lot of earth moving equipment used there. Where in the drain I don't know, I have yet to get into it and walk around. It was said they really tore up the place with excavators, back hoes and bulldozers. I'm not sure what is public and what is private from the maps. The popular carved rocks are either on private land of you have to go through private land to get to them. I'm guessing from the KY river North to where Indian Creek meets 460 is probably 25-30 miles. A life time of searching if you figure both sides of each drain and multiple levels of cliffs or ledges. Typically 3-4 ledges not counting the top as a ledge.
Remember the 'forks of the KY' is where Col. Harrod came to look for the Swift mines and lost his life. Lots of caves and around every turn are more nooks and crannies. Boomer said a number of iron pans and such were found on a drain called Boones Branch in this area, he said they came from FT Boonesboro down river to get salt there. Pretty historic area mine or no mine!