As Mine tunnels go

This one is safe and easy. No holes in the floor or winzes to fall into. No open stopes above you caving in. Its in solid granite. Extensive single level Mine. Couple of drifts following veins of copper and silver ore. Anything else they found they discarded out of the tunnel. In a huge pile of waste rock tumbling down the mountain. Thats where you find some good crystals and rocks. If it didnt have the precious metal they wanted it was tossed out.