A really cool area, complete with a huge cavern. Some problems remain dry under the roof even in downpour. Big moraine, some of the blocks are >60 feet high. For some reason the geography conceals this treasure trove, hence the name.
Either: (1) hike to Tall/Green Wall area, and continue in a NE direction, in a direction parallel to this wall, and meander round a woode thicket to the right before finding the entrance to the boulders (2) Head towards Gold Face boulders by hiking on the Rubicon Trail for 5 mins, then taking a trail on your left down through some manzanita. Instead of then heading uphill to the Gold Face area, go left and downwards to find the guarded entrance.