Snow protection (snow pro) is a type of natural or artificial protection used in mountaineering as an

anchor An anchor is a device, normally made of metal , used to secure a vessel to the bed of a body of water to prevent the craft from drifting due to wind or current. The word derives from Latin ''ancora'', which itself comes from the Greek ...

. Two common artificial devices are the snow fluke and snow picket. It is used both for climbing and for securing tents and other camping gear, designed for use in sand and snow. A fluke is a bent square or rectangle, approximately , and is made of

aluminium Aluminium (aluminum in AmE, American and CanE, Canadian English) is a chemical element with the Symbol (chemistry), symbol Al and atomic number 13. Aluminium has a density lower than those of other common metals, at approximately o ...

or other metal, with a cable attached at two points on the upper surface. A fluke correctly used is buried in the snow, tip pointed down, approximately 40° from the angle of the mountain slope. Flukes can deflect or dislodge in harder-packed or dry snow, and are therefore more reliably used in heavy, moist snow. A picket is usually made of lightweight aluminum in long T-shaped design.

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{{Climbing-nav Mountaineering equipment Climbing equipment

See also

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