Starting today, Yellowstone National Park is taking applications for the 2017-2018 season to allow you to snowmobile in the park without a commercial guide.
Proof that avalanches happen. In this video snowmobilers and a skier are out playing in the snow. One of the snowmobiles starts a small avalanche that catches the skier. Luckily he had friends with him to get him out, but it shows how buried you can get. Learn avalanche safety if you are one to play in the snow.