Do not enter here! This is one adit (entrance) of the Keane Wonder Mine. These mines were supported by timbers which are now about 100 years old. Couple that with the fact that the miners would take every bit of material out of the mine they possibly could because it contained gold and silver. Without sufficient support for the ceiling of the mine, it is slowly collapsing causing the surface to collapse as well. This is one of the reasons for closing this area.