Each winter we hear incredible stories of people who survive a night out in the elements, often because they have learned winter survival skills.
Terri Russell takes us to a class that teaches those skills. The course is primarily for those who survey the snow pack and water levels.
Mostly for government agencies or utilities who can unexpectedly get caught in a winter storm.
At the end of the day, they should have something that looks like this and be able to spend the night in it.
Click on the red camera to watch a snow cave being constructed.