Three Hour Buttress is shown in this topo. The Lamb Canyon Wall starts on the steep white slabs slightly uphill and left of Three Hour Buttress. Sep 28, 2011

Gear - I used only one #3 Cam, and no #4; but did use a very tiny cam (old 0.1, new 00 I think) and a green alien on pitch 1. The anchor for Pitch 1 consists of one bolt plus cams in the crack.
We climbed as a party of three, and got our rope caught when trying to rappel from the top with a double rope - better to do four single rope raps; than longer ones. Lots of bushes and flakes to catch the rope.
Also - there's a bolted rap anchor with hooks to the right of the pitch one anchor location. May 16, 2013