Avalanche: Collins Gulch

Observer Name
Kobernik - Alta Patrol
Observation Date
Tuesday, October 29, 2013
Avalanche Date
Tuesday, October 29, 2013
Region
Salt Lake » Little Cottonwood Canyon » Collins Gulch
Location Name or Route
Baldy Shoulder
Elevation
10,000'
Aspect
North
Trigger
Skier
Trigger: additional info
Remotely Triggered
Avalanche Type
Soft Slab
Avalanche Problem
Persistent Weak Layer
Weak Layer
Facets
Depth
10"
Width
30'
Vertical
250'
Snow Profile Comments

The soft wind crust is not present everywhere. In many places the snowpack consists of just facets with new snow on top of them. At lower elevations (<9500) the soft wind crust is replaced by a melt freeze crust.

Comments

I went up with a few Alta Ski Patrollers to look at some recent avalanches to determine whether they were natural and what the weak layer was. A quick hand pit revealed very loose faceted snow under the new snow. As we were approaching the avalanches we experienced a distinct collapse. During further approach, we unintentionally remotely triggered a small avalanche.

The older faceted snow is no doubt reactive to the new load.

Comments

The pile of debris wasn't all that large but would have definitely knocked a person down and perhaps carried them a short distance.

Coordinates