Avalanche: Room of Doom

Observer Name
P Diegel
Observation Date
Friday, March 28, 2014
Avalanche Date
Friday, March 28, 2014
Region
Salt Lake » Big Cottonwood Canyon » Mineral Fork » Room of Doom
Location Name or Route
W side of pass from Ivory
Elevation
10,400'
Aspect
Northwest
Slope Angle
40°
Trigger
Skier
Trigger: additional info
Unintentionally Triggered
Avalanche Type
Dry Loose
Avalanche Problem
Wind Drifted Snow
Weak Layer
New Snow/Old Snow Interface
Depth
22"
Width
50'
Vertical
200'
Caught
1
Carried
1
Comments

Aggressive ski cut by skier 1 produced nothing. Skier 1 cut across the top of 2 small chutes and continued (fast) down the left chute. I skied the right and triggered a small slab on the first turn below the ski cut. It looked like a small and manageable sluff looking over my left shoulder. Turned hard right toward the side of the gully to let it go by, but got hit hard enough to knock me down from behind and right as the the small crack propagated around and down to skier's right, going to about 22 in deep. I was pushed through several small trees, not hard enough to hurt but enough to lose a ski on one and then got tumbled several times, deployed my avalung, and the slide stopped quickly. Took a few minutes to locate a pole and ski. Deposition stopped on a 32+ deg slope, about 24 to 30 in deep. Not life-threatening, but scary, humbling, irritating, and embarrassing. I'm happy I hit the tree with my ski instead of my face.

Take aways: We had checked the dawn patrol hotline and done several hasty pits and knew the new snow interface was weak but everything we saw was 4-10 in deep. I was consciously thinking there was a good chance it would slide but was aware it was not high-consequence terrain and shouldn't pack much punch or be difficult to outrun. I didn't notice or think about the fat pillows to the side of the run. I originally planned to ski through the steep section very fast, but tagged a rock turning into the chute which triggered the instinct to put in a couple of hard turns to slow down. It felt very good to get my avalung in my mouth and pop up with good visibility after tumbling a few times.

Skin track in photo and some of the tracks in the photo were put in after the slide (partner and another party came up to help find a ski)

Coordinates