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The South Summit of Mount Everest is the second-highest peak on Earth, and is a subsidiary peak to the primary peak of Mount Everest. Although its elevation above sea level of is actually higher than the second-highest mountain on Earth, K2 (whose summit is above sea level), it is only considered a separate peak and not a separate mountain as its prominence (roughly, a measure for how far it projects above the adjacent contour line) is only 11 meters. The peak is a dome-shaped peak of snow and ice, and is connected to the summit of Mount Everest by the Cornice Traverse and Hillary Step. It was first climbed by Charles Evans and Tom Bourdillon in the 1953 British Mount Everest expedition, on May 26, 1953.〔 The group was unable to continue on to the primary summit, but in the second climb, this time by Edmund Hillary and Tenzing Norgay, the South Summit was used to reach the main peak. The distance separating the two summits is approximately . A geologist with a 1965 Indian Everest expedition discovered a deposit of fossils of seashells in limestone about 100 feet above the South Summit. This expedition put nine climbers on the main summit. Describing his first ascent of Mount Everest without artificial oxygen in 1978, Reinhold Messner described the South Summit as "quite a milestone for me". During the 1996 Mount Everest disaster, mountaineering guide Rob Hall and three other people died at the South Summit while descending from the main summit in an unexpected blizzard. Hall survived overnight, and established radio contact the following day, but froze to death later that day, May 11, 1996. His body remains on the South Summit. ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「South Summit (Everest)」の詳細全文を読む スポンサード リンク
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