Perdition Peak, North Ridge. From the distance, this appeared as a clean line, but close inspection revealed the northeast rib to be a better choice. On August 13 Steve Ollila and I discovered this as we descended from a low point on the northeast rib to the northeast pocket glacier. On gaining the north ridge we encountered the crux during the second lead as a short 5.6 open-book. From there on, the climbing was on grassy ledges on the face and solid rock near the crest. We followed the crest to just beneath the northwest summit ridge. We traversed below this ridge to the summit. (III, 5.6.) Ours was the third ascent of Perdition, the second being noted above.