Collapses and unstable ECT results Lionhead

Collapses and unstable ECT results Lionhead

Date
Activity
Snowmobiling

Spent the day up near ski hill with West Yellowstone Avalanche Fundamentals course. 

Our group observed a large collapse below ski hill.

We dug various pits @ 8000' below ski hill and found HS 85-55cm on NW-NE aspects.

The snowpack structure there had weak snow at the ground capped by a stout ice crust with faceted snow over the crust beneath the recent snow.

We recorded ECTP4, ECTP11, ECT20 & a few more propagating results on facets above the crust. 

There was widespread intact surface hoar. 

 

 

 

Region
Lionhead Range
Location (from list)
Ski Hill
Observer Name
S Regan