Observer Name
Grant Helgeson
Observation Date
Friday, December 11, 2009
Avalanche Date
Wednesday, December 9, 2009
Region
Skyline
Elevation
9,500'
Aspect
East
Slope Angle
Unknown
Trigger
Snowmobiler
Trigger: additional info
Unintentionally Triggered
Avalanche Type
Hard Slab
Weak Layer
Facets
Depth
3.5'
Width
350'
Vertical
350'
Comments
I can't be certain, but it looks like this avalanche was triggered by a snowmobiler. There are tracks into, and out of the debris.&
Coordinates