Khumbu Icefall

Khumbu Icefall

The Khumbu Icefall is an icefall at the head of the Khumbu Glacier.The icefall is found at 5,486 metres (18,000 feet) on the Nepali slopes of Mount Everest not far above Base Camp and southwest of the summit. The icefall is regarded as one of the most dangerous stages of the South Col route to Everest's summit. The Khumbu glacier that forms the icefall moves at such speed that large crevasses open with little warning. The large towers of ice or seracs found at the icefall have been known to collapse suddenly. Huge blocks of ice tumble down the glacier from time to time; they range in size from cars to large houses. It is estimated that the glacier advances three to four feet (~0.9 to 1.2 m) down the mountain every day.

Since the structures are continually changing, crossing the Khumbu Icefall is extremely dangerous. Even extensive rope and ladder crossings cannot prevent loss of life. Many people have died in this area, such as a climber who was crushed by a 12-story block of solid ice. Exposed crevasses may be easy to avoid, but crevasses buried under snow can form treacherous snow bridges through which unwary climbers can fall.


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