Boulder Glacier Climbing Route


The approach along the Boulder Ridge Trail is difficult because the trail is only maintained about two miles to the wilderness boundary. From that point, the trail is steep, muddy and hard to follow, with a third-class scramble. Once you get there the climb is moderate and less crowded because of the difficult approach.

Climbers need experience navigating glaciers on this route, which has a short season due to a bergschrund that forms near the summit as the weather warms. Two miles into the climb Boulder Glacier route is in Mt. Baker Wilderness.

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At a Glance

Best Season: Early season
Restrictions: Wilderness regulations apply within Mt. Baker Wilderness.
  • Party size is limited to 12 people
  • Campfires are prohibited
Closest Towns: Sedro-Woolley, Washington 
Information Center: Check current conditions or call Mt. Baker Ranger District office at 360-856-5700 or Glacier Public Service Center at 360-599-2714.

General Information

General Notes:

Most of the campsites are located at the end of Boulder Ridge near Boulder Glacier.

Toilets are not available on this route, please pack it out.


Access via Boulder Ridge Trailhead.

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  Elevation : 
At trailhead 2700 feet