North Twin Sister may be one of the most unique mountaineering day trips in all the Cascades. The West Ridge offers superb alpine rock climbing, exciting exposure, and world-class views of both the Pacific Ocean and Mount Baker. Many route variations allow our guides to customize the difficulty for climbers of all abilities. Steep snow on the north face makes for a quick descent and adds variety to an exceptional day of adventure.

The Twin Sister Range is a wild and rugged alpine rock mecca, guarded by private land. Baker Mountain Guides’ unique relationship with the landowner allows us to drive right to the base of the mountains.


Baker Mountain Guides offers one-day ascents of North Twin Sister. Custom itineraries available.

  • Single Day

    We’ll rendezvous at our office in Bellingham and carpool to the trailhead. The West Ridge of North Twin Sister offers a full day of high-value alpine rock climbing. We’ll return to Bellingham by late afternoon.

Each Adventure is Unique

Program Information