Home to a set of stiff routes, a good half day could be spent here for the 5.10 leader.
Getting There
Quite a hoof for Real Hidden Valley (at least 5 minutes!), The Brown Wall is located on the north end of RHV. Leave the trail as it begins to curve back towards Thin Wall (or turn right as the trail turns right to Sports Challenge), walk north a bit and then up the talus to the base.