Valanga

Avalanche: American Fork

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Avalanche

Slab Width
61 m
Weak Layer
Facets
Trigger Type
Explosive
Avalanche Type
Hard Slab
Slab Thickness
91 cm
Trigger Detail
Intentionally Triggered
Start Zone Aspect
Northeast
Avalanche Problem
Persistent Weak Layer
Start Zone Elevation
3200 m

Reports of multiple explosive triggered hard slab avalanches failing on facets 2'-4' deep and 200'+ wide at elevations 10,500'-11,000'.