I usually don't respond to P.M., unless its something that is personal or if its ask to not reply, I believe that folks need to have a chance to respond ( get involved ). Something that is useful to identify those who made the carvings is to know the compass degrees that they used, the measurements that they used, Where they used which ones, trail markers, 95 percent of those used are trail markers Everybody please Use the knowledge that you learn from your ventures to share what you learn with others. It in my opinion that there is very little treasure left to find, If you can find an old worked out mine and get Real Lucky you could possibly find something of value, The real treasure is locating and working the system used as they did. Learn how to follow sign, the same way others have done Good Luck and I really mean that