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Eruption Trail

South Cascades


South Cascades -- Mount St. Helens
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0.5 miles, roundtrip


Gain: 25 ft.
Highest Point: 4200 ft.


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Parking Pass/Entry Fee

National Monument Fee

A barrier-free, paved hike of less than one mile from the Johnston Ridge Observatory. The trail includes interpretive kiosks and 360 views of Mount St. Helens and the surrounding blast zone.


Eruption Trail

Map & Directions

Co-ordinates: 46.2765, -122.2165 Open map in new window


South Cascades -- Mount St. Helens

Mount St. Helens National Volcanic Monument

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Guidebooks & Maps

Green Trails #332 Spirit Lake

Getting There

From Castle Rock, drive 43 miles east on Highway 504 to the Coldwater Visitor Center, then continue on to the Johnston Ridge Observatory. A $8 per adult fee is required to hike this trail.

Parking Pass/Entry Fee

National Monument Fee

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Eruption Trail

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