The mountaineering community groups Earth's 14 mountains with summits exceeding , referred to as eight-thousanders, as a special category of peaks defining the top of the world. Only an elite group of mountaineers can claim to have summited all 14 peaks and many have perished trying. (See eight-thousanders for current list.) Particularly since 1986 when Italian expeditionist Reinhold Messner became the first to have climbed all fourteen 8000m peaks, summiting the eight-thousanders has become the ultimate goal for many high altitude mountaineers. Similarly, the ski-mountaineering community has set its sights on skiing from the summits of the eight-thousanders. In a 2007 interview for the film Skiing Everest, the Italian mountaineer and skier, Hans Kammerlander articulated the challenge for the ski-mountaineering community: Almost all peaks have been reached, almost all walls have been climbed. But seldom have the walls been skied down... It would be a lovely project if I could see someone who could ski all 8,000m peaks.