North Twin Sister

Featured photo of North Twin Sister

The Twin Sisters Range is the largest exposed section of Olivine Dunite in the Western Hemisphere. To reach the North Twin. Drive Hwy 542 (Mount Baker Hwy) East past Hwy 9 to Mosquito Lake Road. Continue south on this until you reach Logging Road 38. Head East on this staying right at all forks. You will park at the gated bridge. During summer bikes will speed up the ascent and descent. During Winter...have fun and don't forget the snowshoes. Yeagar's on Northwest in Bellingham has Logging road maps. Then on West Holly there is Basecamp to supply you with climbing equipment needs. The West Ridge is the fun route in Winter or Summer. The fastest descent is the North Face (not recomended in winter).

Elevation (feet): 6,640
Elevation (meters): 2,024
Continent: North America
Country: United States
Range/Region: Cascade Range
State: Washington
Latitude: 48.715459
Longitude: -121.998324
Difficulty: Scramble
Best months for climbing: Feb, Mar, May, Jun, Jul, Aug, Sep, Oct
Nearest major airport: Seattle, Wa or Vancouver, BC
Convenient Center: Bellingham, WA

Thanks to Joe Poulton for adding this peak.

Trip Reports

NOTE: Trip reports were previously called "Summit Logs" - same feature, new name

There are 4 trip reports for North Twin Sister.

Select any entry from the list below:

  • Log #17080 - by Joe Poulton on Oct 22, 2003
    Update Basecamp on West Holly has closed, but AAI in Fairhaven has taken up the slack. That is if you don't want to support REI. Which is the Starbucks of climbing stores.
  • Log #17078 - by Taylor on Oct 20, 2003
    Great climb over a three day weekend. Nice exposed move out of the overhang onto some dirty 4th class scramble to the summit. The three of us all did the route on a fixed line, both up and down the...
  • Log #17081 - by Tom Breit on Apr 25, 2003
    A wonderful experience! The trailhead is hard to find in the maze of logging roads, but the climb is worth it. The west ridge has beautiful firm rock, plenty of handholds. We had to descent the...
  • Log #17082 - by Joe Poulton on Feb 15, 2002
    The North Twin is very fun, with or with out rock shoes. But with rock shoes, it's as if you were spiderman. The pictures that I will be submitting are not from my summit trip. When I summited with...