Climb Cul de Sac to the cave. Gain the ice flow above the cave, either by traversing in above the cave from the right, or up the pillar on the left of the cave. A number of ice pitches and steep snow lead up the fault to the summit. A fine companion to Cul de Sac. The first ascent of the lower part of the route was halted at the snowfields on the left at half height due to bad weather, The ascent continuing the line to the summit was probably the second ascent overall.
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Brian Alder, Andrew Milne, September 1988 (To the snowfields)
S. Fortune, R. Measures, July 2012 (to the summit)