Contact Information
National Volcanic Monument Headquarters
42218 N.E. Yale Bridge Rd.
Amboy, WA 98601
(360) 449-7800
TTY: (360) 891-5003
Johnston Ridge Observatory
24000 Spirit Lake Highway
P.O. Box 326
Toutle, WA 98649
(360) 274-2140
Mount St. Helens Visitor Center at Silver Lake
3029 Spirit Lake Highway
Castle Rock, WA 98611
(360) 274-0962
(Operated by Washington State Parks and Recreation Commission)
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