Spent the previous night at Anvil Camp. Saw a bear just before reaching Anvil, didn't have bear barrels, so one of my buddies got to build us a bear hang. Fun! Anyway, we trudged up Shepherd Pass, which due to the heavy snow year, was still mostly buried in snow. The "trail" there is in shambles. It's basically a scree slog. Topping the pass, you get a beautiful view of Tyndall, and the north rib route is pretty obvious. I would HIGHLY recommend the North Rib to anyone looking for a great scramble. The rock is clean, the angle steep and sustained, but not so much that you would fall to your death. It's textbook Class 3, for 1,500' feet. Lovely. The airy ridge boulder hop to the summit is great. I'm really not sure how much longer the summit block will stay attached to the mountain, though. I crawled up there and sat on it, but couldn't convince myself to stand up. That first step (1,500') is a doozy! Weather in late August was perfect. Probably between 50 and 60 degrees the whole way. Great climbing weather! The GPS track attached is from Anvil camp to the summit. Everything past the top of the pass is cross-country, off-trail.