Avalanche: Hidden Canyon 11/21/2010

Observer Name: 
Stoddard
Observation Date: 
11/21/2010
Occurrence Date: 
11/21/2010
Occurrence Time: 
1:30pm
Region: 
Hidden Canyon
Big Cottonwood Canyon
Salt Lake
Location Name: 
Great Western/Hidden canyon ridge
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Location

40° 35' 39.498" N, 111° 33' 50.4576" W
Avalanche Characteristics
Elevation: 
9400'
Aspect: 
Northeast
Slope Angle: 
36
Trigger: 
Skier
Trigger: additional info: 
Intentionally Triggered
Avalanche Type: 
Soft Slab
Weak Layer: 
New Snow/Old Snow Interface
Depth (avg): 
18"
Width: 
60'
Vertical: 
125'
General Comments

An obvious wind loaded slope with a very dense deep hard slab along the ridge. The slide propagated mid/upper slope as I delicately searched for the trigger point, which required very little help by a soft ski stomp. The slide was very cohesive breaking apart into large chunky blocks which had rapid accelaration over the rock cliffs and ran into the trees below. The crown 40 feet below the ridge had stubborn slab hangfire still attached to the ridge top. A good sign that low angle skiing was in the near future!

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