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The Rongbuk Glacier () is located in the Himalaya of southern Tibet. Two large tributary glaciers, the East Rongbuk Glacier and the West Rongbuk Glacier, flow into the main Rongbuk Glacier. It flows north and forms the Rongbuk Valley north of Mount Everest. The famous Rongbuk Monastery is located at the northern end of the Rongbuk valley. Mount Everest is the source of the Rongbuk Glacier and East Rongbuk Glacier. ==Discovery== The English climber George Mallory first explored the main Rongbuk Valley and its glacier while searching for possible routes to the summit of Mount Everest during the first British Everest reconnaissance expedition of 1921. The East Rongbuk glacier was first explored by Edward Oliver Wheeler in August 1921 on the same expedition. Wheeler's exploration below the Lhakpa La pass led him on 3 August 1921 to realise that the East Rongbuk valley provided the key to a viable route to the summit of Everest.〔Wade Davis - ''Into the silence'', Vintage Books, London, 2012.〕 A few weeks later a party consisting of George Mallory, Guy Bullock and Oliver Wheeler explored the head of the valley via the Lhakpa La pass to become the first people to reach the North Col of Everest and set foot on the slopes of that mountain. See 1921 British Reconnaissance Expedition.〔 〕〔 〕 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「Rongbuk Glacier」の詳細全文を読む スポンサード リンク
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