Date/Time: 12/29/2017 13:00:00

Path: Commissary Ridge Zone: 306
Elevation: 9760 Aspect: E
Starting zone slope angle: 36-40
Type: Soft Slab
Relative Size: 3 Destructive Size: 2.5 Depth: 30
Trigger: Snowmobile (AM)
Lat: 42.588165 Lng: -110.733917

Observer Notes:The second rider on the slope was side hilling when the slide released. That rider was buried for 8 to 10 minutes and was evacuated by a helicopter and did not survive. The slide failed on a buried layer of surface hoar and dug down through several inches of faceted snow to a hard crust that formed in late November. Two other riders were partially buried but not injured.

1 Fatalities Involved.

Brennan Walpole Age: 35

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