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Johnston Ridge Observatory

Located at the end of State Highway 504 (52 miles east of Castle Rock), in the heart of the blast zone, the observatory hosts interpretive displays that tell the biological, geological, and human story of Mount St. Helens. Enjoy a breathtaking view of the volcano and crater or set out on a hike in the blast zone. US Geological Survey Volcano Camera at Johnston Ridge Observatory - This static image is from a USGS Cascades Volcano Observatory research camera located at the Johnston Ridge…

  • Managed by: USDA Forest Service
  • Coordinates: 46.275554, -122.21606

Nearby & related campgrounds

  • Trailhead: South Coldwater
  • Coldwater Lake Picnic and Boating Site
  • Smith Creek Picnic/Viewpoint
  • Mount Margaret Backcountry
  • Harmony Falls Viewpoint
  • Meta Lake Interpretive Site

Frequently asked questions

Is Johnston Ridge Observatory reservable?

Johnston Ridge Observatory is primarily first-come, first-served. Use the availability view to gauge how busy it is before you go.

Where is Johnston Ridge Observatory?

See the map for Johnston Ridge Observatory's exact location and directions.

How do I book a campsite at Johnston Ridge Observatory?

Pick your dates on the availability calendar, then reserve through the official booking link. You can also set an alert and we'll notify you if a sold-out date opens up.

Check campsite availability