Photos

Lionhead winds Lionhead winds -Feb 21, 2017

Eric Knoff talks to a snowmobiler about the dangers of highmarking during a HIGH danger as winds rip and move lots of snow at the ridgeline. Photo: GNFAC

Wind slabs avalanching on Lionhead Ridge Wind slabs avalanching on Lionhead Ridge -Feb 21, 2017

There were many avalanches on wind-loaded slopes in the Lionhead area. Lots of new snow (2.5" SWE) and very strong winds created a HIGH avalanche danger. Photo: GNFAC

Falling tree triggered avalanche Falling tree triggered avalanche -Feb 21, 2017

Eric Knoff investigates an avalanche in Lionhead on a wind-loaded slope that was likely triggered when the tree behind him fell from the epic winds. The avalanche was small (1.5' deep, 75' wide, 100' vertical) and failed on a layer of facets on top of an ice crust. Photo: GNFAC

Beacon Park Practice Beacon Park Practice -Feb 21, 2017

Emily Stifler-Wolfe works a double burial problem at the Beacon Park in Bozeman (Beal Park). Her daughter cheers her on!

Pilot Creek Avalanche x2 Pilot Creek Avalanche x2 -Feb 21, 2017

This large avalanche, near the parking lot of Pilot Creek, released over the weekend. This slope also avalanched during the Avalanche Warning about 9 days ago. These slides buried the bottom 40 feet of an ice climb. The parking area is located in Wyoming to the east of Cooke City. Photo: A. Mulkey

Instability at Bacon Rind Instability at Bacon Rind -Feb 20, 2017

Skiers found a weak layer on an ice crust about a foot under the surface at Bacon Rind on Saturday. This is not a widespread issue, but it worth looking for since an ice crust would be easy to feel with a simple poke of a ski pole or swipe of your hand. Photo: H. Morrical

Avalanche Debris, Mt Blackmore Avalanche Debris, Mt Blackmore -Feb 16, 2017

Alex Marienthal of the GNFAC stands on fresh debris on the north Face of Mt Blackmore. This slide originated near the ridgeline and appeared to be triggered by a cornice drop. Photo GNFAC

Crazy Mountains Avalanche Crazy Mountains Avalanche -Feb 15, 2017

This avalanche in Trespass Creek of the Crazies was triggered by a snowmobiler on Sunday (2/12). The dots are where two of the part were stopped when the slide roared by...about 30' away. Photo: J. Works

Sunlight Basin Avalanche, 2/14/2017 Sunlight Basin Avalanche, 2/14/2017 -Feb 14, 2017

This human triggered avalanche occurred in Sunlight Basin in the southern Madison Range. The slope has an east-northeast aspect and was heavily wind loaded. The slide was triggered from low on the slope and it propagated a few hundred feet uphill. The rider who triggered the slide was not caught, but another rider in the run out zone was partially buried near the toe of the debris. Fortunately nobody was injured in this incident. Photo GNFAC 

Sunlight Basin Avalanche, 2/14/2017 Sunlight Basin Avalanche, 2/14/2017 -Feb 14, 2017

A snowmobiler triggered this avalanche from low on the slope. The rider who triggered the slide was not caught, but another rider parked in the run out zone was partially buried. The slide failed at the ground and deposited up to 15' of debris in the run out. Fortunately nobody was injured in this incident. Photo GNFAC