Photos

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Northern Madison, 2025-01-04

From IG 1/3: “Buck ridge today. NE aspect. Probably 100’ wide and at least 3’ deep. Looked like it was triggered by a snowmobiler earlier in the day.” Photo: P Rockwell

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Northern Madison, 2025-01-04

From IG 1/3: “Buck ridge today. NE aspect. Probably 100’ wide and at least 3’ deep. Looked like it was triggered by a snowmobiler earlier in the day.” Photo: P Rockwell

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Cooke City, 2025-01-03

3-4 foot crown about 100 yards wide on East face of sheep mountain. Photo: Mike F

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Cooke City, 2025-01-03

3-4 foot crown about 100 yards wide on East face of sheep mountain. Photo: Mike F

 

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Southern Madison, 2025-01-03

Second photo of an avalanche likely triggered by a snowplow flinging snow onto the shoulder along 191 inside YNP. Not a dangerous avalanche but an indicator of dangerous conditions higher up in the mountains where the snow is deeper

 

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Southern Madison, 2025-01-03

Avalanche likely triggered by a snowplow flinging snow onto the shoulder along 191 inside YNP. Not a dangerous avalanche, but an indicator of dangerous conditions higher up in the mountains where the snow is deeper

 

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Southern Madison, 2025-01-03

Cut bank avalanche 3 Jan 25 along the Teepee Creek snowmobile trail 

 

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Bridger Range, 2025-01-03
Cooke City, 2025-01-03

On Jan 2, 2025 we saw three avalanches just north of Daisy Pass and one on Henderson Mtn. The one on Henderson was difficult to see the crown, but we could see the debris. Two of the slides north of Daisy were 2-3' deep and 100-150' wide and ran into thick stands of trees, looked like thick soft slabs/drifts of recent snowfall. There were a lot of tracks from previous days nearby, but trigger in unknown. The other slide was 1-2' deep and 300-500' wide, soft slab of recent snow. Photo: GNFAC

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Cooke City, 2025-01-03

Jan 2, 2025 We dug a pit between Scotch Bonnet and Sheep Mtn. on a sw facing slope at 9,800'. HS was 135cm (4feet). We had ECTP12 and ECTP26, both on a layer at similar height as the surface hoar has been found (1.5-2 feet above the ground). The weak layer was mostly 2-3mm facets w/ small cups and some signs of surface hoar on top of a melt-freeze crust. Photo: GNFAC

, 2025-01-02

Two pits from the same location side by side for comparison. One from Dec 17 and one from Dec 31.

Cooke City, 2025-01-02

Rode out to Wolverine Pass on New Years Eve.  Daisy pass is a little spicy for novices still. On approach to  wolverine pass/YNP boundary we found HS 160cm on NE facing slope at 9200'.  Found 3-4mm SH in tact at 110 cm deep. Found 1-2mm FC at 60cm deep. Ectn27 at storm interface layer 60 cm deep. No results on SH layer, but many collapses during the day assumed to be on this layer.  Large D2-3 deep Slab avalanche seen on NW facing slope of Sunset Peak. Picture attached. Generally stable condions, but big avalanches on N,NE,NW facing slopes are a real concern for sure. 

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Northern Madison, 2025-01-02

Triggered slide in Beaver Creek 1 Jan 2024

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Bridger Range, 2025-01-02

Overview photo E facing storm slab N Bridgers 1 Jan 2024

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Bridger Range, 2025-01-02

 E-facing storm slab N Bridgers 1 Jan 2024

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Lionhead Range, 2025-01-01

Settling and collapsing on E-NE slopes above Hebgen. Full slope collapses and cracks, approximately 28 degree slope pictured.

Photo: C Koch

Lionhead Range, 2025-01-01

While touring up a low-angle ridge in the northern Lionhead, I experienced several large collapses, notably one that triggered a cornice fall from 50’ away. Another remote collapse caused about 500’ of an E facing bowl to propagate, but not slide. ~9200’ E-SE 

Photo: N Sramek

Lionhead Range, 2025-01-01

While touring up a low-angle ridge in the northern Lionhead, I experienced several large collapses, notably one that triggered a cornice fall from 50’ away. Another remote collapse caused about 500’ of an E facing bowl to propagate, but not slide. ~9200’ E-SE

Photo: N Sramek

Southern Madison, 2025-01-01

A snowmobile triggered a small persistent slab avalanche in the Taylor Fork on Tuesday. The rider was not caught. Photo: O. El-Zaru

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Bridger Range, 2025-01-01

There were many large storm slab avalanches in the northern Bridgers on Monday and Tuesday during the avalanche warning. Photo: C Kussmaul