The US had its deadliest week of avalanches in more than a century when 15 people were killed in the natural disasters last week.
The deadly stretch from Jan. 30 to Feb. 6 was the worst since 1910, according to the Colorado Avalanche Information Center.
It included avalanches in Utah, Colorado, Montana, California, Alaska and New Hampshire.
“This has been a difficult week for a lot of people in our community, in Colorado and across the country,” the center said in a Facebook post announcing the grim milestone.
Multiple fatalities were caused by single avalanches in Utah, Alaska and Colorado.
The most recent one in Utah killed four skiers in Millcreek Canyon on Saturday. Four other skiers survived the ordeal.
Three backcountry skiers died in a Feb. 1 avalanche in Colorado’s San Juan Mountains.
Four people were initially trapped, but others in the group managed to free one skier, who had minor injuries, authorities said.