Frisby Falling

Map for Mountain Information Network report: Frisby Falling

Information

Activity
Snowmobiling

Group details

Total in the group?
4
People fully buried?
0
People partly buried with normal breathing?
0
People not injured (caught but not buried)?
0
People injured (caught but not buried)?
0
People involved?
0

Terrain details

Terrain shape at trigger point
Concave
Snow depth at trigger point
Average
Terrain traps
  • Gully or depression

Comments

Snowmobiler riding along the top edge of hill triggered a size 2 slab avalanche. It propagated across behind him so he was not even aware he triggered. I was standing down at the bottom and witnessed the avalanche. One other rider in our group had already got to the top via a straight up route with no signs of instability.

The triggered slide had a crown of approx 18” depth average. The could have easily propagated further and that would have resulted in a much larger slide.