Avalanche
- Slab Width
- 107 m
- Slab Thickness
- 122 cm
- Start Zone Aspect
- North
- Start Zone Elevation
- 2987 m
Snowmobiling out of Mill Hollow we noticed this ridge line around Bald Knoll that had multiple avalanches spanning the majority of the ridge. We came to inspect and believe that they where remotely triggered from snowmobilers below the slope, the avalanches appeared very fresh.
The main avalanche I am reporting from this ridge line was over 300' wide and ran about 150 feet. The crown was anywhere from 1'-4' it broke to the ground in old facets. It appeared to be connected by a crust. The slope was wind loaded and contained a very hard (pencil hard) slap above the week layer. This slab deposited debris 4-10' deep and could have easily buries someone who was on the slope.
Photos 1-3 are the first avalanche discussed.
Other than this avalanche we noted multiple other avalanches and NW-NE aspects breaking on slopes harboring old faceted snow with crusts. Many of these happened on slopes that where smaller with tracks near by.
Photos 4-7 are other slides that we took photos of.
We also noted wide spread collapsing and many shooting cracks on slopes harboring old facets. These cracks would spider web out and if the slope was a little steeper, would have produced an avalanche.
Other than this, snow stayed cold and in sheltered terrain great riding conditions where widespread if you could avoid hidden stumps and rocks.