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High Mountain Guides
/ The Alpine 4000m Peaks
/ Aiguille de Bionnassay 4052m
/ Approaching The Col Du Miage & Durier Hut
Aiguille Du Bionnassay South Ridge beyond. An easy section leads up for several hundred metres above the Durier Hut before the more engaging, narrow snow ridges & mixed scrambling of the Bastion is reached.