
Tree Triangle
Route Details
Tree Triangle sits immediately above the Asulkan Hut in Glacier National Park and is formally rated “Complex – Class 3” avalanche terrain under the Avalanche Terrain Exposure Scale. This is not a mellow hut-side warmup: expect overlapping paths, exposure to overhead start zones, and terrain that demands full winter permit compliance, current avalanche bulletin, and a conservative group mindset.
From the hut, the line is a short skin into steep, tight trees that ski more like a confined feature than a full run. The glades are narrow with limited options to open it up, and small route-finding errors can push you into steeper rolls or terrain traps. Treat every lap as serious avalanche terrain with careful spacing, regrouping only in well-sheltered islands of safety away from the fall line.
Tree Triangle is highly conditions-dependent. It gets hammered quickly in good weather, and after storms the combination of wind effect, cross-loading from the surrounding alpine, and the confined forest can turn it into breakable, slabby, or unskiable mess. Best days are with a right-side-up snowpack, moderate hazard, and enough visibility to read micro-features; avoid it when hazard is elevated or when wind slabs are building above the hut.
Activity
Downhill
Subtype
Backcountry
Difficulty
Freeride