Snow Bridge
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. 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 centimetres 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.

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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. 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 centimetres 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.