Michigan man killed in Wyoming avalanche while snowmobiling Updated Feb 19, 2021; Posted Feb 19, 2021 FILE - This Feb. 14, 2021, file image provided by Colorado Avalanche Information Center shows an avalanche that killed an unidentified snowboarder near the town of Winter Park in Colorado. A Michigan man died this week after an avalanche buried him in debris while he was snowmobiling in the Rocky Mountains in Wyoming.Colorado Avalanche Information Center via AP, File Facebook Share What has been a deadly avalanche season in the Rocky Mountain region has now claimed the life of a Michigan man who was snowmobiling with family, The Associated Press reports.