Avalanche

Avalanche: Boundary Creek

John JansonUintas
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Observation photo 1

Quick report

Slope Angle
45°

Avalanche

Slab Width
122 m
Weak Layer
Density Change
Trigger Type
Skier
Vertical Fall
183 m
Avalanche Type
Hard Slab
Slab Thickness
91 cm
Trigger Detail
Unintentionally Triggered
Start Zone Aspect
West
Avalanche Problem
Persistent Weak Layer
Start Zone Elevation
2896 m

We approached the slide area via an existing track. Passed a snow pit that showed the many weak layers. The track passed near what we all knew to be a slide area just a little further south. Our weight made the hard layer collapse and radiate toward the slide are which broke loose with significant speed, noise, popping and cracking. The slide traveled out of our sight down the mountain and stopped about 150 due south of the BC yurt. It had widened to several hundred yards at the bottom and the deposition area was over 6 feet. Very powerful avalanche!