"Thank God Ledge"

My buddy Don crossing "Thank God Ledge" on the NW Face of Half Dome. It was named by Royal Robbins, the first ascender. Robbins and his team had "telescope scouted" the climb from the valley floor, and had a pretty good idea where the route would go... except for dealing with the summit "visor." Directly below that overhang is this ledge that allows climbers' to traverse underneath the visor... thus the name. It's 1700' to the base of the cliff from this spot. Kinda "airy"...