The area also is popular among photographers and tourists seeking some of the most expansive views in Colorado.
Colorado Avalanche Information Center forecaster Spencer Logan said there have been weak layers in Colorado’s snowpack since early January.
“Our last series of storms made them more active again,” he said. “Over the last week and a half, that area got over 18 inches of snow, so if you melted that that would be 2 inches of water, so that is a heavy load.”
Lisa Clarke Devore, who was headed back to Denver from the resort, told The Associated Press she saw a fire truck and ambulance on the pass, as well two search dogs headed into the area of the slide. She said she saw several ambulances, including one towing snowmobiles, driving toward the pass.
On Thursday, a 38-year-old snowboarder died in an avalanche south of Colorado’s Vail Pass. Eagle County sheriff’s officials said the man and another snowboarder likely triggered the slide after a friend on a snowmobile dropped them off at the top of Avalanche Bowl.
U.S. avalanche deaths climbed steeply after 1990, averaging 24 a year, as new gear became available for backcountry travel. Until then, avalanches rarely claimed more than a handful of lives each season in records going back to 1950.