Man I would love to do some digging!! My favorite type of hunting!
If we get the time I know a huge cave in North AL. that we could dig. I have dug a bunch of nice rocks out of it over the years. There are lots of pointers to the cave ( a big rock with little limestone rocks pilled on top with one piece of pie shaped sandstone on it that points to the cave ) also on the bench directly across from the cave are about 50 stone piles that I believe to be burials. Cool to look at but I would never dig. A site to be seen though.