Mount St. Helens/Worm Flows


Basic Alpine Climb - Mount St. Helens/Worm Flows

Backcountry Skis/Splitboards required. Open to graduates of Basic Alpine Climbing and Backcountry Skiing. AIARE 1 required

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.
  • Strenuous 5, Technical 4, Winter Scramble
  • Moderate
  • Mileage: 12.0 mi
  • Elevation Gain: 5,700 ft

0530 Marble Mountain Sno Park

On skin track 0600

Backcountry Skis/Splitboards required. AIARE 1 required. Must have Basic Climbing, Intermediate Climbing (Student or Graduate), or Backcountry Ski badge.

Due the nature of backcountry skiing, participants must have participated in a ski outing with the leader or assistant leader prior to the climb. Please contact the leader for additional information. These sessions will be nearby at Summit at Snoqualmie or Camp Muir.

When contacting the leader, please include the following:

  • Backcountry ski experience
  • Recent trips
  • Favorite summit snack

Mount St. Helens/Worm Flows

  • USGS Mt St Helens

    Green Trails Mount St Helens NVM No. 332S

    Green Trails Mt St Helens NW No. 364S
  • See full route/place details.
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
Trip Reports