From Bishop, Ca., take highway 168 west to the lake Sabrina trailhead. Follow the trail up Bishop Creek to Sailor Lake. Cross country hiking from Sailor Lake takes one past Moonlight Lake to Echo Lake. The Clyde Spires are directly in front of you!
The maps for this area are the Mt. Darwin and mt. Thompson 7.5 minute USGS quadranges.
The ice gully is obvious. We climbed the right side, finding is somewhat protected from rock fall compared to the left side. Climb 600' of 45 degree ice, then climb up and left for 2 pitches of mixed rock and ice ( varies due to the amount of snowfall that year ) to the summit ridge. To descend, head North on the Sierra crest toward Mount Wallace, then head down class 2 slopes back to Echo Lake.
Although the High Sierra guidebook rated this as 5.7, we didn't find it harder than 5.5. However, there may be more than one way to go once on the mixed climbing!
Ice tools, crampons, a rope, helmet and a light rock rack is recommended.
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