Persistent Slabs
- Alpine
- Treeline
- Below treeline
- Likelihood
- Likely
- Size
- 3
On northwest to east facing slopes at the mid and upper elevations, you'll find a 1-3' thick slab resting uneasily over a sugary persistent weak layer of faceted grains. This set up is dangerous and may be triggered while you are on or beneath the steep slope. These are the type of conditions that cause most of our avalanche accidents and steep terrain on these aspects are to be avoided. Remember that you can trigger these from below.