Avalanche East Face

Avalanche East Face drops off the east side of Avalanche Mountain in Glacier National Park, in full alpine terrain above the Avalanche Glacier. The line falls from the col between the main and south summits, with options to start slightly higher off the south summit when coverage and stability allow. Expect a broad face with multiple fall-line variations that all feed toward glaciated terrain below.

From the upper ridge, give the corniced sections a wide berth and use lower-angle ribs or scoured sections to access the face. The slope rolls over quickly, and visibility can be an issue in flat light, so strong route-finding is key to staying away from convexities and isolated pockets. Below, the glacier has crevasses and broken sections; parties usually trend toward more supported terrain rather than pushing into the middle of the ice.

This is serious alpine avalanche terrain with overhead hazard from the upper face and cornices, plus the added consequence of glacier exposure. It is generally a mid-winter to spring objective in stable conditions, once coverage on the glacier is reliable and the snowpack has settled. Many parties time it for clear, cold nights and early starts to be off the face before solar input and warming start to affect the east aspect.

Check Glacier National Park access rules and daily avalanche forecasts before committing; winter permit systems, closures, or artillery control work can affect when and how you can be in this zone.