Avalanche
- Slab Width
- 137 m
- Weak Layer
- Facets
- Trigger Type
- Snowmobiler
- Vertical Fall
- 61 m
- Avalanche Type
- Soft Slab
- Slab Thickness
- 76 cm
- Trigger Detail
- Remotely Triggered
- Start Zone Aspect
- Northeast
- Avalanche Problem
- Persistent Weak Layer
- Start Zone Elevation
- 3078 m
Snowmobile riders were taking a break and watched this avalanche release 200 to 300 yards away from them. It is most likely they caused the snowpack to collapse which then traveled through the snow and up the slope. It is very common for a layer of weak faceted snow buried within the snowpack to behave like this.