Avid for steep slopes, Marco Siffredi (1979-2002) obeys only one rule: not to fall. This gifted kid with hair sometimes blond peroxidized, green or blue clashed in his valley: Chamonix, mecca of mountaineering. His thing was to go up and down on a snowboard. . 90 minutes September 8, 2002, altitude 8848 meters, rare oxygen, his head already brushing the sky and his snowboard running, Marco Siffredi, 23, rushes from... see more