The man killed in an avalanche Tuesday afternoon was a member of the Wolf Creek Ski Patrol who was conducting research outside of the ski-area boundary in Conejos County.
The victim, who has yet to be officially identified, is Colorado's seventh avalanche-related fatality of the season.
The Tuesday slide occurred around 1:30 p.m., south of Platoro Reservoir near Conejos Peak, southeast of Wolf Creek Pass, according to a preliminary report from the Colorado Avalanche Information Center.
The victim was "immediately extricated by his partner and a second team of two patrollers working in the same area," but died of injuries at Mercy Regional Medical Center around 4:45 p.m., according to the report.
That is the second Wolf Creek ski patroller to die in an avalanche since Novembr 2010, when the patrol director was killed in an inbounds avalanche.
Meanwhile, near Cortez, rescuers are searching for a snowmobiler who was buried by an avalanche on Wednesday.
The Montezuma County Sheriff's Department says the slide struck in the La Plata Mountains. Ten rescuers are on the scene.
Authorities say four other snowmobilers dug themselves out of the slide.
The high country has been treacherous all season long, and all areas remain at either moderate or considerable danger conditions, according to the Colorado Avalanche Information Center.
On Feb. 15, Jarrard Law and Justin Lentz of Wisconsin were killed on Star Mountain, near Twin Lakes in a hard-slab avalanche "large enough to destroy a railway car or a substantial amount of forest," according to a final report from the information center released Wednesday.
The two dead men were among seven skiers caught in that avalanche.