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The Cornerstone is a large formation located in the far reaches of the Wonderland Valley. It's home to a fine assortment of face and crack routes including As the Crags Turn (5.7), General Hospital (5.9), All My Children (5.8) and Tomato Amnesia (5.10a).
Follow directions to the Bighorn Dome, continue down the valley about .5 miles, generally following the wash. The Cornerstone will become obvious on the left side. The east side of the formation can be identified by the left leaning flake system ( "As The Crag Turns" ) and the large flake system which splits the face ( "General Hospital" and "Rope Opera" ).
3 Total Routes
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Mountain Project's determination of some of the classic, most popular, highest rated routes for The Cornerstone:
General Hospital 5.9 5c 17 VI HVS 5a PG13 Trad, 1 pitch, 140'
Featured Route For The Cornerstone
This route is a bit serious for the 5.9 climber but well worth climbing if in the area. The start is hairy with little pro and extremely thin flakes for holds. Just after the start the pro comes around and the climbing is stiff at the grade but rewarding. The crux is just before the midway point up the left facing flake forcing the climber to smear left onto the face while working blind but positive jams upward. The top of the flake section of the climb can be protected with small cams in a ...[more] Browse More Classics in CA
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