Just witnessed a HUGE rockfall on the North Face of Half Dome at 3:20 pm from The Prow on Washington Column. A large portion of exfoliation slabs let loose from the summit almost exactly at the top out of the route Tis-sa-ack. Multiple car sized pieces exploded on the wall and base. Now that both sides have had significant rockfall I would not recommend climbing on the entire face for the rest of summer, at least. Bummer but pretty awesome to see! [/url]