Mount St. Helens/Worm Flows

GETTING THERE

Take Exit 22 off of I-5 and merge onto Dike Access Rd. Continue onto Old Pacific Highway and bear left onto E Scott Ave. At the traffic circle take the second left onto Lewis River Rd. In ~30 miles, Lewis River Rd continues as Road 90. Turn left at Forest Road 83, and in ~6 miles turn right into the Marble Mountain Sno-Park (2,600 ft).

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

• This route allows multiple bookings. Please check scheduled trips listed below in the "Activities" tab to see if there is another group already booked on the same day. Leaders are expected to contact the leader(s) of existing trips to ensure there are no concerns or conflicts, according to The Mountaineers Outdoor Ethics Policy.
• Leaders are responsible for obtaining climbing permits during the permitted season.

• Suitable Activities: Backcountry Skiing, Scrambling, Snowshoeing
• Snowshoeing Category: Intermediate
• Seasons: January, February, March, April, May, December
• Weather: View weather forecast
• View avalanche forecast.

• Difficulty: Strenuous 5, Technical 4, Winter Scramble
• Length: 12.0 mi
• Elevation Gain: 5,700 ft
• High Point: 8,363 ft

• Land Manager: Mount Saint Helens National Volcanic Monument
• Parking Permit Required:
• Recommended Party Size: 12
• Maximum Party Size: 14
• Maximum Route/Place Capacity: 12