Weisshorn, Southeast Ridge Attempt. The southeast ridge of the Weisshorn was attempted by the Kluane National Park Warden Service, led by Jürg Hofer and me. The ridge presented more difficulties than we had estimated. A very dangerous double cornice caused our retreat on the first day. Fixed ropes would have been necessary to tackle the difficult by-pass. The next day the weather deteriorated; storms held us tight in a snow cave for ten days until we got airlifted to Kluane on May 5.
Hans Fuhrer, Kluane National Park