Hidden Peak, Ski Descent. After arriving at Base Camp at 17,050 feet on May 15, four French and Swiss climbers, Sylvain Saudain, Jean Pierre 01- lagnier, Daniel Semblanet and Marie José Valençot, and high-altitude porter Mohammad Ali climbed Hidden Peak after 32 days. On the summit day, the Swiss skier and leader of the group, Saudan, skied down for two hours and bivouacked. Laurent Chevalier and a Swedish photographer stayed at 25,600 feet to film the run. The next day he descended to Base Camp in nine hours, completing the descent of over 9000 feet with 3000 turns. Between 21,325 and 19,700 feet the corniced ridge was difficult. We presume they followed the first-ascent route.