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Mount St. Helens National Volcanic Monument
Location & Directions

3029 Spirit Lake Highway
Castle Rock, WA 98611

Directions
From Interstate 5, take Exit 21 (Woodland Exit). Head east on Highway 503, approximately 23 miles to junction Highway 503 (which turns right) and Lewis River Road (straight). Turn right (south) on Highway 503. Stay on Highway 503 and follow signs to Amboy.


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* GORP Washington Resources
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