Everything about Snow Bridge totally explained
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For another meaning, see Avalanche snow bridge
Snow bridge is an arc across a
crevasse, a crack in rock, a
creek, or some other opening in terrain. It is typically formed by snow drift, which first creates a
cornice, which may gradually grow to reach the other side of the opening.
Dangers
A snow bridge may completely cover the opening and thus presents danger: it creates an illusion of unbroken surface while hiding the opening under a layer of snow of unknown thickness, possibly only several centimeters thick.
Snow bridges may also be formed inside a crevasse making it appear shallow.
Since a snow bridge is thicker and stronger at the edge of a crevasse, a fall through a bridge usually happens at some distance from the crevasse edge.
Further Information
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