An unstable snowpack due to topsy-turvy weather late last year was one of the factors behind the first deadly avalanche of the year in Colorado, according to investigators.

The riders, "knowingly ducked a rope closure line" and triggered a D2 wind slab avalanche that caught three of the four riders in the group. The observation does not include a photo of the avalanche ...

Dangerous avalanche conditions are widespread across Colorado following a big New Year's storm.

wet avalanches, and slab avalanches. Slab avalanches, which occur when a wide layer of a hardened snow slides down a slope, are responsible for the most deaths, according to the forest service.

“Since Christmas, we have received hundreds of reports of avalanches,” the CAIC said in a social post. “Most reports describe Persistent Slab avalanche behavior with remote ...

The riders, "knowingly ducked a rope closure line" and triggered a D2 wind slab avalanche that caught three of the four riders in the group. The observation does not include a photo of the ...