Skier triggered avalanche in the Negatives region

AVALANCHE OBSERVATION
Negatives Region

Drainage:

Submission Info
christopherolder
Volunteer Observer
Thursday, March 28, 2019 - 5:45pm
Avalanche Type: 
Slab
Trigger type: 
Skier
Aspect: 
North
Terrain: 
Above Treeline
Elevation: 
10 400ft.
Avalanche Length: 
600ft.
More detailed information about the avalanche: 

On the second lap out of the resort towards Hemlock Mountain, I noticed avi debris in the cirque N of the Negatives, between the 3-D chute and Hemlock Mountain.  It must have happened between 9am-12pm.  Once up higher on Hemlock, I was able to take a photo of the crown of a slab avlanche in a N facing chute.  R2-D2.  Looking through the binoculars, it appears that a skier/rider came in from the skier's left, ski cut across the chute, and triggered the slide.  There was a boot pack heading back up to the ridge along the skier's right side above the crown.  I saw no ski tracks down below.  I saw what looked from a distance like old ski tracks that had become a positive feature along the bed surface.  The slide path went down over some cliff bands a few hundered feet below.  

Avalanche Photos: 
37° 44' 11.2416" N, 119° 5' 49.578" W

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