This is a giant 40 foot slab down the hill from the Alamo and opposite of the Overhanging Prow. It is a huge secluded slab with a handful of X rated problems/routes that go up to as high as 40 feet. They were put up by the gnarly Boulder boulderers of the '70s such as Rob Candelaria and Pat Ament.
Hike a few minutes downhill from the Alamo. It is right by the Overhanging Prow.