North Twin Sister/West Ridge


Basic Alpine Climb - North Twin Sister/West Ridge

A fun outing on excellent rock in the Mt Baker area

COVID-19: Learn about our most up-to-date guidance for participants and leaders on our COVID-19 Response page. All participants and leaders must agree to the COVID-19 Code of Conduct before participating in this Mountaineers activity.
  • Sun, Jun 5, 2022
  • Seattle Climbing
  • Climbing
  • Basic Alpine
  • Adults
  • Basic Alpine Climb, Strenuous 2, Technical 1
  • Moderate
  • Mileage: 16.0 mi
  • Elevation Gain: 5,400 ft

Meet at the bridge off of Mosquito Lake Rd at 0700.  Allow 90 mins from Seattle.

This will be a long day - please bring a mtn bike (gravel bikes might work, but will not be as effective) to make the descent faster and help somewhat on the approach.  Be prepared for 3/4 class unroped scrambling though we will bring climbing ropes/harnesses.  The rock is amazing and the descent challenging - a fun day all around.

Note for current basic students - this is neither a rock climb nor a glacier climb, so will not count towards your graduation requirements.  Ideal for basic graduates wanting to get out on good rock.


North Twin Sister/West Ridge

Required Equipment

Required Equipment

  • The Ten Essentials
  • Mountain boots that can accept crampons (not hiking boots)
  • Crampons
  • An ice axe (not technical ice tools)
  • A back pack (40 to 60 liters)
  • Webbing and accessory cords
  • 6 straight gate carabiners
  • 2 locking carabiners
  • Large pear-shaped carabiner
  • Belay device
  • Climbing harness
  • Helmet
  • Chock pick (nut tool)
  • Rescue pulley
  • Fleece or puffy jacket
  • Rain jacket and full-zip rain pants
  • Belay gloves
  • Warm gloves or mittens
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