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At war with avalanches.

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اقرأ على الانترنت اقرأ أكثر حفظ في قائمتي
  • معلومة اضافية
    • الموضوع:
      COLORADO; UNITED States
    • نبذة مختصرة :
      Discusses Life Scout members' avalanche control activity in Colorado's Arapahoe Basin Ski Area. Groups that collaborated to reduce danger from avalanche; What the control work requires; Comment from Leif Eric Borgeson, an Arapahoe Basin ski patroller.