Avalanche: Twin Lakes Pass 11/13/2011

Observer Name: 
Dave Kelly
Observation Date: 
11/15/2011
Occurrence Date: 
11/13/2011
Occurrence Time: 
Unknown
Region: 
Salt Lake
Big Cottonwood Canyon
Twin Lakes Pass
Location Name: 
Twin Lakes Pass
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Location

40° 35' 25.89" N, 111° 36' 29.2788" W
Avalanche Characteristics
Elevation: 
10200'
and below
Aspect: 
East
Slope Angle: 
38
Trigger: 
Unknown
Avalanche Type: 
Hard Slab
Weak Layer: 
Facets
Depth (avg): 
20"
Width: 
40'
Vertical: 
250'
General Comments

While skinning up the ridge between TLP and Grizzly I noticed debris on the eastern side facing Twin Lakes. It was the path located right at treeline and it appeared that a piece of it had broken off and then triggered two more sections below. The starting zone had been filled back in, but the lower crowns were still distinguishable. There were piles of snow in the trees that would have been deep enough to bury a skier or rider.

11.15.11 TLP slide 1.JPG
11.15.11 TLP slide 2.JPG
11.15.11 TLP slide 3.JPG
11.15.11 TLP slide 4.JPG
General Comments 2

First photo is snow piles up on trees in the run out zone, second photo is crown in middle of slope, third photo is looking down the slide path, the crown is located where you can see the rocks in the middle of the picture, fourth photo shows both crowns taken from the side.

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