Campground
Seaquest State Park campground
Castle Rock, Washington
Forest camp opposite the Mount St. Helens visitor centre at Silver Lake.
- Price
- Check Washington State Parks for rates
- Booking
- Best to book

Seaquest State Park is a forested campground on Highway 504, across the road from the Mount St. Helens Visitor Center at Silver Lake. It is the easiest overnight for exploring the Spirit Lake Highway towards Johnston Ridge.
Good to know
- Start the day with the visitor centre
- Johnston Ridge is the best volcano view
- Book summer weekends early
- Best time
- Summer
- Open
- All year
- Getting there
- Paved SR-504
- Vehicles
- Campervans fine
- Dogs
- Dogs on a lead
Facilities
- Fire pits
- Picnic tables
- Powered sites
- Showers
- Toilets
- Drinking water
Data: Roadtrip. Things change: check opening times, prices and rules before you go.
Know what the drive costs
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