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Left Infirmary Slab has two 5.8 trad/slab routes that are really only notable if you've already made the hike to Upper Infirmary Slab and want to get some more routes in. They're longer routes, but the cruxes are at the start and the rest of the climbing is really easy. Scramble down the right side of the formation to descend.
As for Upper and Lower Infirmary Slabs, drive 5.1 miles up the canyon, and park at the pullout on the left (best to drive a little further and turn around at the turn off to the Forest Service Ranger cabins). Either hike up the trail to Upper Infirmary Slab and rockhop/bushwack 100 yards west (climber's left) and slightly down to the base of the slab OR hike up the road part way back to the cabins and the lower angle rockfall area and hike up the hillside trending up and right straight to the base.
3 Total Routes
Browse More Classics in Left Infirmary Slab
Mountain Project's determination of some of the classic, most popular, highest rated routes for Left Infirmary Slab:
Wax 'n Wane 5.8 5b 16 VI- HVS 4c Trad, 2 pitches, 300'
Knuckle Sandwich 5.9+ 5c 17 VI E1 5a Sport, 1 pitch, 80'
Featured Route For Left Infirmary Slab
Wax 'n Wane 5.8 5b 16 VI- HVS 4c CO : Lyons : ... : Left Infirmary Slab
This shoots up the slab, sort of right of middle, to the obvious crack on the face above. The crux is the slab moves. A yellow TCU protects it. The crack is beautiful till you've pulled the bulge to the low-angle crap and a belay above. The long second pitch is just easy slab and stemming to a tree. Scramble off right....[more] Browse More Classics in CO
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