Persistent Slabs
N
NE
E
SE
S
SW
W
NW
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 2–3
You can trigger a large avalanche on slopes that face northwest through north to southeast directions near and above the treeline. You might be the 10th or 20th person to travel on a slope before you trigger an avalanche so keep in mind that tracks on a slope do not mean the slope is safe. You can reduce your chances of triggering an avalanche by traveling below the treeline or on south, southwest, and west-facing slopes. If you do travel on aspects of concern (northwest through north to southeast at upper elevations) stick to slopes less than around 30 degrees steep without similarly steep slopes overhead for safer travel options.