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The lower tier of the Bihedral is being broken out into a separate area, since it's really distinct from the Left Side and the main upper tier area.
Follow the approach trail for the Bihedral to its upper end, to the bottom of the rappel gully. Beer Dog, Hound's Tooth, and Canine Corner start on a buttress 25' above, left of the gully. Like a Wonk, Botonga, and Leave No Trace start about 100' left, down and around the corner. Free at Last starts below a prominent V-dihedral about 20' right of Leave No Trace.
15 Total Routes
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Mountain Project's determination of some of the classic, most popular, highest rated routes for The Lower Tier:
Hound's Tooth 5.10b 6a+ 19 VII- E2 5b Sport, 1 pitch, 80'
Tinnitus 5.11c/d 7a 24 VIII E4 6a Sport, 1 pitch, 60'
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Botonga 5.9 5c 17 VI HVS 5a CO : Boulder Canyon : ... : The Lower Tier
This route is not marked in Rossiter's Bihedral section of the Boulder Canyon book and is not apparently described on this site yet. This seemed to be the buttress 'below' route #1 in Rossiter's topo. From the normal approach to the Bihedral, just before the scrambling starts off of the trail, take a sharp left and go west to a short buttress with several bolted routes on it. This is the second bolted route from the right, starting about 15' left of Leave No Trace. See ?beta photo?...[more] Browse More Classics in CO
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