Alpine Extreme
Gilles Sierro on a solo descent of the East-Southeast Face of the Dent Blanche. Photo by David Carlier
AJ 03 FEATURE

Alpine Extreme

In Europe, the pursuit of radically committed ski lines is reaching new heights

Gilles Sierro cracks open a can of Coke. He takes a swig and passes it to Yannick Prolong, who does the same and hands it over Olivier Roduit. The three huddle together beneath the summit cross on 14,295-foot Dent Blanche in western Switzerland, not quite shoulder-to-shoulder, but close. Beyond the small shelf they’ve dug into the snow, there isn’t much room to roam.

The Coke is somewhat of a ritual for Sierro, something he brings on most of his ski and climbing missions and on days when he’s working as a mountain guide out of Arolla, Switzerland. He likes the taste, and the sugar and caffeine provide a boost after a long climb, but it’s also reassuring—a taste of familiarity and consistency in a world that is dynamic and fluid and can teeter from serene to deadly in a matter of minutes.

It’s June 6, 2013, and Sierro, Prolong, and Roduit have just completed a rare ascent of the west-southwest

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