Where is Mount St. Helens National Volcanic Monument,Toutle / Near Castle Rock, Washington?

Written by | Last Updated: November 19, 2025, 12:28 PM ET

Mount St. Helens National Volcanic Monument is located in Washington, USA. It lies between Portland, Oregon and Seattle, Washington and is situated in the Cascade Range. It is famous for protecting the area around Mount St. Helens and its volcanic landscapes, lava flows, and ash deposits.

Mount St. Helens National Volcanic Monument Location Map,Toutle / Near Castle Rock, Washington

Where is Mount St. Helens National Volcanic Monument Located inToutle / Near Castle Rock, Washington
About Map: The map showing location of Mount St. Helens National Volcanic Monument in theToutle / Near Castle Rock, Washington in the United States.

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Top Attractions Inside Mount St. Helens National Volcanic Monument

  • Johnston Ridge Observatory – Offers spectacular views of the volcano, crater, and informative exhibits.
  • Harry’s Ridge Trail – Popular hiking trail with panoramic vistas of Spirit Lake and the eruption zone.
  • Spirit Lake – Scenic lake impacted by the 1980 eruption, featuring floating logs and wildlife observation.
  • Volcano Science Center – Educational exhibits on volcanic activity, geology, and ecosystem recovery.
  • Coldwater Lake – Picturesque lake created by the eruption, ideal for picnicking and nature walks.
  • Loowit Viewpoint – Observation area with sweeping views of Mount St. Helens and surrounding landscapes.
  • Hiking & Nature Trails – Trails ranging from short walks to challenging backcountry hikes through volcanic terrain.

Mount St. Helens National Volcanic Monument Facts

Official NameMount St. Helens National Volcanic Monument
LocationToutle & Castle Rock Region, Skamania and Cowlitz Counties, Washington, USA
Latitude & Longitude46.20° N, 122.18° W (approx.)
Total Area110,000 acres (445 km²)
EstablishedAugust 26, 1982
FounderU.S. Congress (designated after 1980 eruption)
Managed ByU.S. Forest Service (Gifford Pinchot National Forest)
RegionCascade Range / Pacific Northwest
AddressMount St. Helens National Volcanic Monument, Spirit Lake Memorial Highway (SR 504), Toutle / Castle Rock, WA
Zip Code98649 (Toutle) / 98611 (Castle Rock)
Area Code360 / 564
CurrencyUnited States Dollar (USD, $)
Time ZonePacific Time (PT) – UTC−8 Standard / UTC−7 Daylight Saving
Theme / ConceptVolcanology, Geology, Regeneration, Outdoor Recreation, Natural Disaster History
Sections (Areas)Johnston Ridge Observatory - Windy Ridge - Ape Cave - Lava Canyon - Coldwater Lake - Forest Learning Center - Meta Lake
Famous AttractionsMount St. Helens Crater - Johnston Ridge - Ape Cave Lava Tube - Spirit Lake - Eruption Blast Zone - Loowit Trail
Annual VisitorsApprox. 500,000–750,000
Entry Fee TypePaid Entry (Some centers require fees; climbing permits required)
Ticket Price Range$5–$15 for select visitor centers; Climbing Permit ~$15–$20 (seasonal)
Ticket OptionsVisitor Center Admission - Climbing Permits - Guided Tours - Educational Programs
Best Time to VisitLate May–October for full access; Winter access limited but scenic
Nearby AirportPortland International Airport (PDX) – ~75 miles (120 km)
TransportationCar Access via SR 504 - Large Visitor Center Parking - Limited Tour Buses - No public transit directly to monument
Official Websitehttps://www.fs.usda.gov/mountsthelens

Distances from Mount St. Helens National Volcanic Monument to Nearby Landmarks

  • Johnston Ridge Observatory – 10 km (6.2 mi)
  • Mount St. Helens Summit – 18 km (11.2 mi)
  • Spirit Lake – 15 km (9.3 mi)
  • Coldwater Lake – 25 km (15.5 mi)
  • Silver Lake – 22 km (13.7 mi)
  • Windy Ridge Viewpoint – 30 km (18.6 mi)
  • Mount St. Helens Visitor Center – 12 km (7.5 mi)
  • Harry’s Ridge Trail – 14 km (8.7 mi)
  • Toutle River – 28 km (17.4 mi)
  • Castle Lake – 35 km (21.7 mi)
  • Coldwater Trail – 26 km (16.2 mi)
  • Silver Lake Campground – 23 km (14.3 mi)
  • Windy Ridge Trailhead – 30 km (18.6 mi)
  • Elk Rock – 10 km (6.2 mi)
  • Cougar, WA – 40 km (24.9 mi)
  • Ridgefield, WA – 75 km (46.6 mi)
  • Vancouver, WA Downtown – 90 km (55.9 mi)
  • Mount St. Helens Trailhead – 12 km (7.5 mi)
  • Mount St. Helens Lava Canyon – 12 km (7.5 mi)
  • National Monument Entrance – 5 km (3.1 mi)