A new study finds an average of 27 people in the United States are killed every year in backcountry avalanches.
Snowmobilers are the most to be killed. Five have died so far this year compared with three skiers. And even ore deaths happen when people ski deep in the wilderness.
The largest number of avalanche deaths in the U.S. occurred two years ago. Thirty-five people died that year. In the 2002-2003 season, 30 people were killed. So far this season, 18 people have died.