Observation Date
Tuesday, February 11, 2014
Avalanche Date
Tuesday, February 11, 2014
Region
Salt Lake » Big Cottonwood Canyon » Lake Mary
Location Name or Route
Lake Mary
Elevation
9,600'
Aspect
Northeast
Slope Angle
Unknown
Trigger
Snowboarder
Trigger: additional info
Unintentionally Triggered
Avalanche Type
Hard Slab
Avalanche Problem
Persistent Weak Layer
Weak Layer
Depth Hoar
Depth
4'
Width
60'
Vertical
80'
Comments
Slab broke down to surface hoar that was growing on a buried rock band. Snowboarder didn't realize he triggered it until he was at the bottom of the slope out of the way. Everyone in the party had beacons, shovels, and probes, and knew how to use them, and were aware of potential dangers as listed by the UAC.
Coordinates