Observer Name
UAC Staff
Observation Date
Saturday, September 14, 2024
Avalanche Date
Sunday, December 4, 2005
Region
Salt Lake » Big Cottonwood Canyon
Location Name or Route
Upper Big Cottonwood Canyon
Elevation
10,500'
Aspect
Northeast
Avalanche Type
Hard Slab
Avalanche Problem
Persistent Weak Layer
Weak Layer
Facets
Depth
4'
Width
300'
Comments
- Clayton's- 10,400'-east northeast aspect 3'-4' deep hard slab failed on buried facets sympathetic avalanche to control work at Brighton
- Wolverine Cirque- 10.400'-east northeast aspect 3'-4' deep hard slab failed on buried facets
10,420'- east northeast aspect 3'-4' deep hard slab failed on buried facets remotely to skiers on the ridge
Sympathetic avalanches can be defined as avalanches that occur as a result of another avalanche on an adjacent slope. Remote avalanches can be defined as avalanches that occur away from the point they are triggered. The common theme is that regardless of what you call it; an avalanche that occurs as a result of distant trigger is a sign of an unstable snowpack and the best travel advice is to avoid traveling on or underneath slopes steeper than 30°.
Coordinates
