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Mount St. Helens/Worm Flows


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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



Intermediate Snowshoe - Mount St. Helens/Worm Flows

Snowshoeing Trip
Last chance to snowshoe up Mount St. Helens' classic winter route before the permitting season
Difficulty: Technical 4, Strenuous 4
Sat, Mar 30, 2019 - Sun, Mar 31, 2019
Prerequisites, Leader's Permission Required
4 participants 1 leader
Registration closes Mar 28
Foothills Branch

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
0 participants 1 instructor
Registration closes Mar 20
Seattle Branch

Winter Scramble - Mount St. Helens/Worm Flows

Scrambling Trip
Spring scramble up Mount Saint Helens
Difficulty: Strenuous 5, Technical 4, Winter Scramble
Fri, May 3, 2019 - Sat, May 4, 2019
Prerequisites, Leader's Permission Required
9 participants 1 leader
Registration opens Apr 1
Kitsap Branch

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 Camping, cramponing) Mount St. Helens/Worm
Difficulty: Strenuous 5, Technical 4, Winter Scramble
Sat, May 4, 2019 - Sun, May 5, 2019
No Prerequisites
10 participants 1 instructor
Registration opens Apr 15; Instructor registration open now
Seattle Branch
Trip Reports
Titles

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  • Chocolate Falls
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