The Green Slab
| HVS 4c|
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Good open climbing up the huge slab in the centre of the zawn. It should not be approached lightly; this is a very serious route, runners and belays are scarce and the top-out can be dangerous. Take plenty of long slings. Start to the left of Mousetrap, below a large groove defining the lower right-hand part of the slab.
1) 4b, 30m. Climb the left wall of the groove, trending left to a break on the arete. Move left to belay at the base of a prominent dusty groove, and find a belay with much difficulty.
2) 4b, 40m. Move up rightwards onto the main green slab, and follow a wandering line up the slab, aiming towards a steepening on the top right edge. The rock here is interesting and hard to protect. Belay below a tower-like feature with a shelf that leads off leftwards.
3) 4c, 35m. Climb the short wall above into the long diagonal break, there is an optional belay on poor threads near the start of this. Then follow this break leftwards to its end with a generous pinch of exposure. The transition from rock to dirt (with no change of angle) will be the most worrying section of the route for many; keep going in the same line to the top.
FA. S.Wroe, D.Crilly, P.Braithwaite 5.6.1965