It's not just about having a knack for choosing less busy days in Yellowstone National Park. There are rules involved and permits to get if you'd like to do some backcountry camping in the first national park for all to enjoy.
A harrowing video out of Big Sky, Montana shows how fast the snow can turn on you if you're skiing the backcountry. One skier recently accidentally caused a massive avalanche and the moment it happened was captured on video.