Lang Shoulder Large Natural on 2 aspects

Quick report

travis_johnson17 · Mar 13, 2026 · Dogtooth

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Quick report

Weather
cloudy, sunny
Ride Type
mellowSlopes
Stayed Away
alpineSlopes, convexSlopes, cutBlocks, openTrees, steepSlopes
Riding Quality
good
Snow Conditions
deepPowder
Avalanche Conditions
avalancheConditionSnow

We were the first group into the zone since the last snow Thursday morning. Assuming this very large natural avalanche occurred in the storm.

Avalanche

Run Length
1000
Trigger Type
natural
Wind Exposure
crossLoadedSlope
Avalanche Size
3.5
Start Zone Aspect
E, SE
Vegetation Cover
openSlope
Start Zone Incline
36
Avalanche Character
deepPersistentSlab, stormSlab
Crust Near Weak Layer
1
Number Of Avalanches
1
Start Zone Elevation
2550
Avalanche Observation
24to48hrsAgo
Weak Layer Crystal Type
stormSnow, surfaceHoar
Start Zone Elevation Band
alp
Avalanche Occurrence Datetime
2026-03-12T12:00:00.000Z

Storm snow started in the alpine and as it moved down the mountain it stepped down in multiple areas to deeper PWLs. This avalanche propagated to 2 different aspects and produced 2 x 3.5 sized avalanches. The East aspect ran 1 km and the debris piled up for 250 m across the flats and into the timber taking out several trees and the normal pickup zone for sled skiers. The SE avalanche ran 850M across two large flat benches, taking out timber and leaving a massive debris pile spread over 650M. This avalanche took out the normal up track for sled skiing. In over 20 years of riding in this area I have never observed an avalanche travel this large and through this terrain.