01/30/2009 05:12 am ET Updated May 25, 2011

Series Of Avalanches Have Killed 15 People In Last Two Weeks

Reporting from Denver -- An unusual winter snowfall has triggered a series of avalanches in the high mountains that has killed nine people in the U.S. and six members of a snowmobiling group in British Columbia in the last two weeks.

Two other Canadians from the same small-town group are presumed dead. With increasingly treacherous conditions, Canadian avalanche forecasters warned skiers and snowmobilers that it was too risky to use the backcountry for the next several days.

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