Alex Marienthal, of the Gallatin National Forest Avalanche Center, takes a look at the conditions on Ross Peak, in the Bridger Range, after a snowmobile triggered an avalanche on January 5.

Knowing the conditions (and recent history!) of where you're playing is the most important thing you can do to keep your party safe.

The GNFAC website leads you to crucial weather stations and webcams that are worth bookmarking if you're active in the back country.