Observer Name
UAC Staff
Observation Date
Tuesday, July 9, 2024
Avalanche Date
Monday, February 12, 2007
Region
Salt Lake » Big Cottonwood Canyon
Location Name or Route
Upper Big Cottonwood
Elevation
10,000'
Aspect
Northeast
Slope Angle
36°
Trigger
Skier
Trigger: additional info
Unintentionally Triggered
Avalanche Type
Soft Slab
Avalanche Problem
Persistent Weak Layer
Weak Layer
Facets
Depth
2'
Width
200'
Vertical
700'
Caught
2
Carried
2
Comments
- Dry Fork- 10,400' East-northeast aspect-skier triggered soft slab- 2' deep 200' wide 700' vertical. Triggered by skiers dropping a cornice, ran over bench where slides usually stop (photo).
- Clayton Peak- 9,800'- Northeast aspect= soft slab failed on facets- 2' deep 60' wide and 200' vertical. Several pockets triggered from different skiers. Pulling out onto lower angled slopes.
- Tuscarora- 10,400'- Skier triggered, caught and carried, ended up on top.
- Twin Lake Pass- 10,000'- East-northeast aspect- skier triggered soft slab failed on buried facets- 2' deep 60' wide and 300' vertical. Tracks going into fracture line and coming off of debris at bottom.
- Skier unintentionally had cornice break, triggered slide below. Then intentionally triggered another.
Coordinates
