Avalanche: Steep Hollow Trees

Observer Name
Toby Weed
Observation Date
Tuesday, January 18, 2011
Avalanche Date
Monday, January 17, 2011
Region
Logan » Logan River » Steep Hollow » Steep Hollow Trees
Location Name or Route
Steep Hollow
Elevation
8,600'
Aspect
North
Slope Angle
38°
Trigger
Natural
Avalanche Type
Hard Slab
Weak Layer
Facets
Depth
20"
Width
Unknown
Vertical
400'
Comments

Many slopes in the Steep Hollow Area naturally avalanched during the ice storm overnight of 1-16/1-17.... I took a good look at the avalanches on the steep treed slopes on the south side of the box canyon... A complex of large hard slab avalanches stretched across the face with large and very deep piles of debris stacked up on trees and along the flat bench below the slope. The 1 to 3 foot deep hard slabs released on a couple weak layers formed when near the snow surface. I found large rimed crystals and sugary facets in the lower shear plane....

Comments

I kept running across more avalanches and piles of heavy debris as I continued to ride along the base of the steep slope....

Comments

Here are a few more crowns from the area......

Notice how the heavy snow piled up into the trees...

Video
Coordinates