Joska, on the other 3d maps did you see anything ? I think / know there are tunnels and a few caves closed off with stacked rock and a stream coming from one . the triangle in the upper part of the pic is a 130’x130’130’ laid out in stacked rock . And there are 6 water dams built in low lying areas coming off the hill from that triangle

?? I’m thinking hydro mining

This site is in the foothills of the Appalachian Mountains, on a river system in a huge bend in the river it also has huge 30 foot tall what I had to believe to be monuments for something, I think this is the main marker on the river, even though there are three or four of them. And where I’m digging is close to the 357 -360 around 1200’ with a shaft 200’ + deep also in this line .
Thank you for your input !!! I’m always looking for advice . I just feel there’s to much here to ignore . Thank you again !