No answer on why the gully, but perhaps skiers 1-3 were anxious about the safety of the regroup point and wanted to continue to keep the group spread out. That has been my inclination in similar scenarios.
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Of course, maybe they didn't feel comfortable skinning uphill under the area that slid sympathetically.....GE clearly shows old avy snow in the gully below this area. There really was no low-risk egress back to the hut from the bottom of the slope that they skied.
What I can't get off my mind is it seems like an easy traverse across to the road area on the adjacent slope below the hut. I feel like that would have been obvious move but I wasn't there...
I have skied this. I was rolling solo so I avoided this terrain trap. Yes you can head back up hill and cross back over in the treed area. This is simply a case of yahoo, powder let's get some more turns. Personally I would not of wanted to break trail up that south facing slope at 4:00. But from the picture there is already a lot of tracks on it. They probably figured roll the gully catch the uptrack already in back to the hut. My thoughts to all those affected by this. Terrible tragedy.
you can easily gain the road switchback on the other side of the gully, there is no cliff or other impediment. From the switchback, the uptrack to the hut leaves the road and goes up about through maybe the last "0" in the "11,400" mark on the map there, and makes a clockwise circle path up to the hut. But keep in mind you'd have to hang in the gully to skin up. Who knows why skier 1 went down the gully instead- wanting to get out fast could have been the reason (although it is gully all the way down until you'd stop, not really a safer spot below). Condolences to the families and friends.
I was struck by seeing ski tracks of the far side of the gully. I would have thought that there might be a big deposition/powder blast up the far side, but it seems like it really just funneled down the narrowest/deepest part of the gully. Maybe they didn't ride higher on the left side worrying that side could also slide due to steepness? Or maybe the snow was better down the middle and they wanted to ski pow? But from what I can tell, it seems like just skiing a few feet up on the left side could have led to a totally different outcome. Either way, something I will certainly think about if I ever find myself needing to navigate this type of terrain feature in the future.
Very rough, but here you go.
Attachment 361955
IIRC the south east facing slide in the photo was the result of mitigation.
the line you want is that slight ridge between the mitigation and the skier triggered.
From the above caption and image from CAIC, I believe both of the smaller slides outlined in the Caltopo image were triggered sympathetically by the fatal avalanche, and the slide triggered by mitigation would be just off the map to the south. The approximate outlines seem about right. Just posting this because I misread ISBD's post a couple times and thought it'd be worth having the caption here.Quote:
Originally Posted by CAIC
Edit: this image from a different angle is also worth posting
Attachment 361975
I notice that the smaller sympathetic slide on the more NE aspect overran some previous tracks. There's also a large slide on the north aspect that I don't think they indicated what the trigger was or when it ran.
Adam ... https://coloradosun.com/2021/02/08/a...alanche-death/
Andy ... https://coloradosun.com/2021/02/08/a...alanche-death/
Seth ... https://coloradosun.com/2021/02/08/s...alanche-death/
Such amazing guys.
I've been reflecting on these guys. I hope my boys turn into men like this. Some standout gents it seems.