Avalanche
- Slab Width
- 457 m
- Weak Layer
- Facets
- Trigger Type
- Natural
- Avalanche Type
- Hard Slab
- Start Zone Aspect
- North
- Start Zone Elevation
- 2804 m
From Cornice Ridge, we could see this very wide avalanche across the upper north fork of Cottonwood Canyon on the 3rd Sister in the Mount