Observer Name
UAC Staff
Observation Date
Thursday, November 14, 2024
Avalanche Date
Thursday, December 9, 2004
Region
Salt Lake » Little Cottonwood Canyon
Location Name or Route
Little Cottonwood Canyon
Elevation
9,800'
Aspect
South
Slope Angle
38°
Trigger
Explosive
Trigger: additional info
Intentionally Triggered
Avalanche Type
Hard Slab
Avalanche Problem
Persistent Weak Layer
Weak Layer
Facets
Depth
2'
Comments
- East Hellgate 9,000' elevation south aspect 38° slope explosive triggered hard slab avalanche failed on crusts and facets 2' deep x 100' wide x 1000' vertical. Controlled slide across road - trees in debris
- Superior - 11,000' elevation south aspect 35°-45° slope explosive triggered hard slab avalanche failed on crust and facets 2' deep x1500' wide x 3000' vertical. Went wall-to-wall into creek - trees in debris
- Toledo Bowl-9,800' elevation southeast aspect 40° slope explosive triggerd hard slab avalanche failed on facets 2' deep x 150' wide x1500' vertical. Controlled slide on observer's left of bowl
- Emma Ridges near Alta 10,000' elevation south aspect 38° slope explosive triggered hard slab avalanche failed on facets 2' deep x 100' wide x 2000' vertical. Several controlled slides on south facing sliding on sun crust and faceted snow
Coordinates