Northern San Juan

You can trigger a large and dangerous avalanche if you find a shallow spot and collapse a hard layer of snow that rests above weaker snow below. West to northwest through southeast-facing slopes are the most dangerous. Avoid traveling near common trigger points, such as convex rollovers, rocky outcrops, or the edges of slopes where the margins of a slab are thinnest. If you trigger an avalanche, it could be deeper and wider than expected.

Give yourself a wide buffer from suspect slopes steeper than around 35 degrees, and know you can trigger an avalanche from a distance or below.