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From Wikipedia, the free encyclopedia

Refer to caption
Cross section of a cirque glacier showing the bergschrund
Three mountaineers on a snow-covered icefield with mountain peaks in the distance
A bergschrund—the long crack at the foot of the mountain slope—in the Ötztal Alps
Rocky peaks protruding from undulating ice masses
Open bergschrunds at Mont Dolent

A bergschrund (from the German for mountain cleft) or rimaye (from French; pronounced [ʁimaj]) is a crevasse that forms where moving glacier ice separates from the stagnant ice or firn above.[1] It is often a serious obstacle for mountaineers, who sometimes abbreviate "bergschrund" to "schrund".

In a corrie or cirque, the bergschrund is positioned at the rear, parallel to the back wall of the corrie. It is caused by the rotational movement of the glacier. In a longitudinal glacier, the bergschrund is at the top end of the glacier at a right angle to the flow of the glacier. It is caused by the downwards flow of the glacier.

Bergschrunds extend to the bedrock and can have a depth of well over 100 metres (330 ft).

In winter, a bergschrund is often filled by snow from avalanches from the mountain above it. In later summer, due to melting, it lies open and can present a very difficult obstacle to alpinists.

The bergschrund is distinct from the randkluft (also called rimaye), which is the crevasse of which one face is the rock, back wall of the corrie. The randkluft arises in part from the melting of the ice due to the presence of the warmer rock face.[2] However, the randkluft is sometimes called a bergschrund.[3] The French word rimaye covers both notions of randkluft and bergschrund.

On the South Col route to reach the summit of Mount Everest, a deep bergschrund lies at the bottom of the Lhotse face, separating Camp II from Camp III.[4]


  1. ^ Whittow, John (1984). Dictionary of Physical Geography. London: Penguin, 1984, p. 61. ISBN 0-14-051094-X.
  2. ^ Benn, D.I. & Evans, D.J.A. Glaciers and Glaciation (1998) ISBN 0-340-58431-9
  3. ^ Burchfield, R.W. ed. Oxford English Dictionary supplement (1987) ISBN 0-19-861211-7
  4. ^ "Everest South Col Route". Archived from the original on 2012-11-28. Retrieved 2012-12-29.

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This page was last edited on 26 June 2021, at 21:22
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