Bruce Jamieson, doctor of all things avalanche, tells us a wee bit about layers within the snowpack. Video by the Rocky Mountain Sherpas.<br /><br /><br /><img src="http://ll.broadbandsports.com/images/32927_thumb.jpg" alt="Avy Snacks: Snowpack Layering - Avalanche Safety Video" title="Avy Snacks: Snowpack Layering - Avalanche Safety Video" width="150" height="90" alt="Avy Snacks: Snowpack Layering - Avalanche Safety Video"/>
