“Keyhole Plateau” is, as one might expect, a plateau next to the Keyhole. It is a moderate boulder hop from Muriel, Lamarck, or Wonder Lakes, a class 3+ climb from Piute Pass, and a scary loose traverse from Lamarck. Marshall is the second-highest corner of the plateau.
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- Climb from Lost Lakes to plateau
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- Lost Lakes
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- Keyhole Plateau
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- Stereoscopic summit shot
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- Humphreys from plateau
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- Ridge to Lamarck
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- Endless boulders to upper Lamarck Lake
