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 may schedule a trip at a time during the off-season (late fall, winter, and early spring). 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

Winter Scramble - Mount St. Helens/Worm Flows

Scrambling Trip
Winter attempt camping at Chocolate Falls. Prioritized for Kitsap climbers and friends until Jan 12,
Difficulty: Strenuous 5, Technical 4, Winter Scramble
Sat, Feb 12, 2022 - Sun, Feb 13, 2022
Prerequisites, Leader's Permission Required
4 participants on waitlist 1 leader
Registration closes Feb 10
Kitsap Branch

TAC MAC Backcountry Ski/Snow Scramble - Mount St. Helens/Worm Flows

Backcountry Skiing, Youth & Scrambling Youth activity: Mountaineers Adventure Club - Tacoma
Let's bag WA's most accessible volcano before permit season. A great conditioner to lead up
Difficulty: Strenuous 5, Technical 4, Winter Scramble
Sat, Mar 12, 2022
No Prerequisites
5 participants 0 instructors
Registration closes Mar 10
Tacoma Branch

Intermediate Snowshoe - Mount St. Helens/Worm Flows

Snowshoeing Trip
Annual trek up my favorite volcano before the permit season begins!
Difficulty: Very Strenuous
Sun, Mar 13, 2022
Prerequisites, Leader's Permission Required
2 participants 1 leader
Registration opens Feb 1
Foothills Branch

Winter Scramble - Mount St. Helens/Worm Flows

Scrambling Trip
Early season MSH scramble, before permit season begins. Priority to those on my May Asaungate
Difficulty: Strenuous 5, Technical 4, Winter Scramble
Fri, Mar 18, 2022 - Sun, Mar 20, 2022
Prerequisites, Leader's Permission Required
4 participants 0 leaders
Registration closes Mar 10
Kitsap Branch

Scrambles - Mount St. Helens/Worm Flows

Youth Youth activity: Jr. MAC - Olympia - 2022
A scrambling overnight trip for Jr MAC
Difficulty: Strenuous 5, Technical 4, Winter Scramble
Sat, Mar 19, 2022 - Sun, Mar 20, 2022
No Prerequisites
8 participants
Registration closes Mar 17
Olympia Branch

Backcountry Ski/Snowboard - Mount St. Helens/Worm Flows

Backcountry Skiing Trip
For Foothills Climbing
Difficulty: Strenuous 5, Technical 4, Winter Scramble
Sat, Mar 19, 2022
Prerequisites, Leader's Permission Required
0 participants 0 leaders
Registration opens Mar 1
Foothills Branch

Basic Alpine Climb - Mount St. Helens/Worm Flows

Climbing Trip
Ski descent of Mt St Helens.
Difficulty: Strenuous 5, Technical 4, Winter Scramble
Sat, Mar 26, 2022 - Sun, Mar 27, 2022
Prerequisites, Leader's Permission Required
3 participants
Registration opens Mar 1
Seattle Branch

Winter Scramble - Mount St. Helens/Worm Flows

Scrambling Trip
Winter attempt camping at Chocolate Falls. Prioritized for Kitsap climbers and friends until 30 days
Difficulty: Strenuous 5, Technical 4, Winter Scramble
Sat, Mar 26, 2022 - Sun, Mar 27, 2022
Prerequisites, Leader's Permission Required
3 participants 1 leader
Registration closes Mar 24
Kitsap Branch

Basic Alpine Climb - Mount St. Helens/Worm Flows

Climbing Trip
Ski descent of Mt St Helens.
Difficulty: Strenuous 5, Technical 4, Winter Scramble
Sat, Apr 2, 2022 - Sun, Apr 3, 2022
Prerequisites, Leader's Permission Required
4 participants 0 leaders
Registration opens Mar 8
Seattle Branch

Seattle Basic Alpine SIG Field Trip - Overnight Snow Scrambling - Mount St. Helens/Worm Flows

Climbing Field trip: Basic Alpine Climbing Course
Basic SIG Snow Field Trip - Overnight Snow (Snow Anchors & Belays, Crevasse Rescue, Snow
Difficulty: Strenuous 5, Technical 4, Winter Scramble
Sat, Apr 16, 2022 - Sun, Apr 17, 2022
No Prerequisites
1 participant 0 instructors
Registration closes Apr 14
Seattle Branch
Trip Reports
Titles

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  • Chocolate Falls
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