A video from last year is making rounds again ahead of this year’s ski season. The powerful video shows a gigantic avalanche.

Whether you’re a fan of hiking, skiing, snowboarding, or snowshoeing, it’s essential to know how to predict an avalanche. 

When you’re in avalanche terrain in the dead of winter, caution is of paramount importance. One wrong move and everything could slide downhill in an instant. And the sad truth is that if you’re unlucky enough to be buried, you’ve got no more than 15 minutes of oxygen before rescue attempts may be too late. [...]

When pro skier Owen Leeper strapped on a helmet cam near Jackson, Wyoming, last month, he expected to catch some sick footage of himself skiing a steep couloir. He didn’t expect to capture one of the most harrowing scenes of his skiing career.  When Leeper approached the couloir on Feb. 11, he was feeling confident. [...]