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Backcountry avalanche centers across Canada and the United States will be using a new avalanche danger scale for the 2010/11 season.
további részletek:
New Avalanche Danger Scale For 2010/11
Backcountry avalanche centers across Canada and the United States will be using a new avalanche danger scale for the 2010/11 season.
további részletek:
New Avalanche Danger Scale For 2010/11