Photos

Two skiers were ascending a northeast-facing avalanche path on the northernmost ridgeline of Mount Blackmore around 1 PM when they triggered a large, dry slab avalanche that failed 3 feet deep, 150 feet wide, and ran 500 feet vertical. Debris piled up 4-8 feet deep. One skier was carried to the bottom left of the runout zone. Photo: GNFAC

Two skiers were ascending a northeast-facing avalanche path on the northernmost ridgeline of Mount Blackmore around 1 PM when they triggered a large, dry slab avalanche that failed 3 feet deep, 150 feet wide, and ran 500 feet vertical. Debris piled up 4-8 feet deep. Photo: GNFAC

My partner and I were approaching Responsible FamilyMan via Avalanche Gulch early yesterday morning (3/18), and once we broke through the trees into the runout zone, we stumbled across a pretty large wet avalanche debris field. The debris terminated within ~50 yards of the max runout zone. Photo: R. Parsons

My partner and I were approaching Responsible Family Man via Avalanche Gulch early yesterday morning (3/18), and once we broke through the trees into the runout zone, we stumbled across a pretty large wet avalanche debris field. The debris terminated within ~50 yards of the max runout zone. Photo: R. Parsons

We dug below the first cliff band and found 7' of snow, the bottom 2' consisting of weak facets. A Deep Tap Test showed a clean shear at this interface. An avalanche could be triggered by 3 ways: more load from snowfall or wet avalanche debris, melt-water percolating through the snowpack to the facets, or human triggering from a thin spot. Photo: GNFAC

A wet loose snow avalanche on the southeast aspect on Mt Blackmore at 9700 to 9800 feet elevation. Photo: C Daniels

On the east side of Woody Ridge, skiers watched a wet, loose snow avalanche trigger a dry slab avalanche on March 17. photo: N Iltis

On the east side of Woody Ridge, skiers watched a wet, loose snow avalanche trigger a dry slab avalanche on March 17. photo: N Iltis

This slide was remotely triggered by a skier from the ridgeline on 3/14/24. Photo: E. Knoff

We rode from Taylor Fork through Cabin Creek on March 17. We saw a few recent slab avalanches that happened after the last snowfall, and some recent natural wet loose avalanches, and a cornice fall. Photo: GNFAC

We rode from Taylor Fork through Cabin Creek on March 17. We saw a few recent slab avalanches that happened after the last snowfall, and some recent natural wet loose avalanches, and a cornice fall. Photo: GNFAC

We rode from Taylor Fork through Cabin Creek on March 17. We saw a few recent slab avalanches that happened after the last snowfall, and some recent natural wet loose avalanches, and a cornice fall. Photo: GNFAC

We rode from Taylor Fork through Cabin Creek on March 17. We saw a few recent slab avalanches that happened after the last snowfall, and some recent natural wet loose avalanches, and a cornice fall. Photo: GNFAC

We saw no new deep slab avalanches in Cooke City since Alex was there last week. Unfortunately, if you triggered one, it would be no less deadly. This was a large deep slab avalanche on Sheep Mountain. Photo: GNFAC

Wet loose snow avalanche Astral Lake. Photo: GNFAC

A wet loose snow avalanche on Crown Butte. Photo: GNFAC

Pn 3/16/24 We saw a few natural wet loose avalanches run throughout the middle of the day in sunny, steep rocky terrain. Photo: GNFAC

On 3/16/24 we saw a few natural wet loose avalanches run throughout the middle of the day in sunny, steep rocky terrain. There were at least 4 old, deeper avalanche crowns, most of which had been reported and occurred 1-2 weeks ago. Photo: GNFAC

On 3/16/24 We saw at least 4 old, deeper avalanche crowns, most of which had been reported and occurred 1-2 weeks ago. Photo: GNFAC

A rider triggered this avalanche in Taylor Fork on 3/16/24. "Avalanche broke about 400ft wide and slid for 250 ft. 4-2ft deep at the crown."