Rocket Miller from Lake Louise, Alberta describes how avalanche beacons work. Rocky Mountain Sherpas edit.<br /><br /><br /><img src="http://ll.broadbandsports.com/images/33468_thumb.jpg" alt="Avy Snacks #9 - Avalanche Beacons" title="Avy Snacks #9 - Avalanche Beacons" width="150" height="90" alt="Avy Snacks #9 - Avalanche Beacons"/>
