Avalanche

Avalanche: Tollgate Canyon

Bob MerrillSalt Lake
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Quick report

Slope Angle
35°

Avalanche

Slab Width
122 m
Weak Layer
Surface Hoar
Avalanche Type
Hard Slab
Slab Thickness
36 cm
Trigger Detail
Unintentionally Triggered
Start Zone Aspect
Northeast
Start Zone Elevation
2804 m

lewis peak above wanship, pine meadows ranch, tollgate canyon - snowmobiled up west face to ridgeline just south of summit to ski ENE facing stella bowl

sympathetically triggered a 400' wide 12"-16" medium soft slab while approaching the top of bowl - 20' from the roll-over on ENE facing, 9200', 35 degree slope. observed significant cracking on less than 20 degree slope above - very sensitive snow failing on buried surface hoar on top of wind affected bed surface never experienced such sensitivity before in 20 years..

much of both on adjacent slopes E-N at very low angles