Nathalie Vriend, a skier and physicist at the University of Colorado Boulder who studies avalanches, explains what happens in an avalanche and techniques for surviving one.

My favorite thing to do in the world is backcountry snowboarding — journeying into the untamed wilderness of alpine hinterlands and gliding down mountains, far from the manicured slopes, lifts, and ...

We shrug off a frigid mist, awestruck. Deep in Idaho’s Caribou-Targhee National Forest, we’re perched on a platform, witnessing the Snake River froth into a torrent that plunges 10 stories through a ...