North Twin Sister/West Ridge


Basic Alpine Climb - North Twin Sister/West Ridge

A fantastic ridge route on a very rare and grippy rock, the Twin Sister Dunite.

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  • Fri, May 19, 2017
  • Seattle Climbing
  • Climbing
  • Basic Alpine
  • Adults
  • Basic Alpine Climb, Strenuous 2, Technical 1
  • For Beginners (Getting Started Series)
  • Mileage: 16.0 mi
  • Elevation Gain: 5,400 ft


A re-do of an earlier attempt that came short of the summit. We will use mountain bikes on the approach to the trail head, a  5 mile, 2000-ft section on forest roads each way. On the way up it will be a combination of riding and pushing. Riding all the way down from trail head. A bike on good working order required and some biking fitness and skills. 


North Twin Sister/West Ridge

Required Equipment

Required Equipment

  • The Ten Essentials
  • Bikes
  • shoes for bike (optional)
  • bike locks 
  • 2 Pickets with runner and biner.  
  • Glacier rope (1) 
  • Small alpine rack (a few nuts and some webbing)  
  • crampons 
  • ice axe
  • harness (or scramble hasty harness)
  • mountaineering boots
  • 2 locking biners
  • helmet
  • prussick cord
  • single runner
  • extra water to leave with bike (there is no water on the route)
  • gaiters (recommended)
  • tape or gloves for hands (recommended, fingerless bike gloves worked well in the past)
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