Mount St. Helens/Worm Flows

A scramble of 12 miles with 5,700 feet of gain and the preferred winter route.

GETTING THERE

Take I-5 S and get off at exit 22 to merge onto Dike Access Rd.  Merge onto Dike Access Rd, then continue onto Old Pacific Highway. Take a slight left onto E Scott Ave, and at the traffic circle take the 2nd left onto Lewis River Rd. After about 30 miles, Lewis River Rd continues as Rd 90.  Take a left at NF-83, and after about 6 miles the Marble Mountain Sno-Park will be on the right.

Notes

  • Climbing permits are required and done by lottery with the land manager.
  • A Sno-Park parking permit may be needed during month of April for the Marble Mountain Sno-Park.

information FOR LEADERS

scheduling & permits

Only one Mountaineers group schedule a trip at a time during the off "winter" season. Please check trip listings below to ensure you are the only group there on a given day. Multiple Mountaineers groups may schedule trips during the permitting season if each group has obtained a climbing permit.

  • Difficulty: Strenuous 5, Technical 4, Winter Scramble
  • Length: 12.0 mi
  • Elevation Gain: 5,700 ft
  • 8,363 ft
Map
  • USGS Mt St Helens
  • Green Trails Mount St Helens NVM No. 332S
  • Green Trails Mt St Helens NW No. 364S
Activities

Upcoming Activities



Seattle Basic SIG SNOW FT - SIG Snow Overnight (Snow Anchors & Belays, Crevasse Rescue, Snow Camping, & Roped Travel) - Mount St. Helens/Worm Flows

Climbing Field trip: Basic Alpine Climbing Course
Basic SIG SNOW Field Trip - SIG Snow Overnight (Snow Anchors & Belays, Crevasse Rescue,
Difficulty: Strenuous 5, Technical 4, Winter Scramble
Sat, Apr 20, 2019 - Sun, Apr 21, 2019
No Prerequisites, Leader's Permission Required
10 participants
Registration closes Apr 18
Seattle Branch
Trip Reports
Titles

This is a list of titles that represent the variations of trips you can take at this route/place. This includes side trips, extensions and peak combinations. Not seeing a title that fits your trip? Log in and send us updates, images, or resources.

  • Chocolate Falls
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