[MCR] Rogers Pass - November 8th Bruins Ridge Avalanche

[Public Mountain Conditions Report]

Hi all,

Here is some information on the Bruins Ridge Avalanche that happened 
Sunday November 8th:
It occured at approximately 2:30pm.  One rider had already skied the slope 
and was close to the bottom of the slope when the second skier triggered 
the avalanche.  The first rider was fully buried but able to get out 
alone.  The second skier was not buried. Luckily neither person was 
injured.
The avalanche ran about 1200m.  Earlier estimates showed the fracture line 
to be about 300m wide but the latest GPS measurements show it to be  400m 
wide.  It propagated across Bruins ridge for about 400m.  The crown was 
50cm to 100cm deep averaging 65cm.  The avalanche released on a facet 
layer above a crust about 10-15cm above the ground.  The avalanche covered 
0.16km square.  It was triggered at a shallow spot close to a rock 
sticking out of the snow.

With this in mind, watch for areas that will have kept snow from earlier 
on this fall that may have the same weak layer down at the bottom of the 
snowpack.

Many thanks to Jess and Troy Leahey and Shannon Werner for their quick and 
professional action assisting with the rescue.






Lydia Marmont
Chris Gooliaff
Danyelle Magnan

Glacier National Park Visitor Safety
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