A 21-year-old man has been killed after his snowmobile triggered an avalanche that swept him down the mountain and buried him in 5 feet of snow.
Wyatt Coiteux, from La Center, Washington state, US, died on New Year's Eve while snowmobiling with his teenage brother.
The victim was carried 600 vertical feet before being buried in the snow. His brother was riding alongside him on Crown Butte near Cooke City, Montana, but was unharmed.
