Avalanche

Avalanche: Ephraim Canyon

Brett Kobernik/Nick ShawSkyline
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Avalanche

Slab Width
76 m
Weak Layer
Facets
Trigger Type
Snowmobiler
Vertical Fall
30 m
Avalanche Type
Hard Slab
Slab Thickness
107 cm
Trigger Detail
Remotely Triggered
Start Zone Aspect
East
Avalanche Problem
Persistent Weak Layer
Start Zone Elevation
3048 m

Judging from tracks, it appears that some riders working their way up the drainage and triggered this avalanche from below. It doesn't look like anyone was caught.

The average depth of the fracture line was around 3.5 feet deep but was up to near 6 feet at the deepest location.