In 1980, a Washington mountain’s fiery blasts incinerated and flattened the landscape sending forth mudflows of ash and splintered trees and wiping out entire communities. The 45th anniversary of Mount St. Helens’ massive eruption makes this summer excursion an excellent bet, even for those who want a less-crowded summer exploration of the Northwest’s natural and human history.
Summer is also when the mountain’s three visitor centers are open daily including one that reopened with brand-new exhibits. But you’ll likely encounter few tour buses and most parking lots and walking paths are relatively empty and quiet.
That’s because the road’s last seven or so miles—terminating at the 4,200-foot elevation Johnston Ridge Observatory—are closed as a washout undergoes multiyear repairs. Many regional and international visitors misunderstand this situation as a general road closure, depressing the tourism market.

Driving the Spirit Lake Memorial Highway
A scenic byway through the area affected by the 1980 eruption of Mount St. Helens
Driving the Spirit Lake Memorial Highway (State Route 504) offers a unique opportunity to witness the dramatic aftermath and ongoing recovery of one of the most famous volcanic eruptions in U.S. history. The highway provides access to educational centers, hiking trails, and stunning vistas, making it a must-visit for nature lovers, history enthusiasts, and those interested in geology.
If planning a trip, allow 1-2 hours for the drive and consider stopping at the visitor centers for a fuller understanding of the area’s natural and human history.

Mount St. Helens Visitor Center
- Address: 3029 Spirit Lake Hwy, Castle Rock, WA 98611
- Phone: (360) 274-0962
- Hours: Summer, 10 am-5 pm; winter, 10 am-4 pm
- Fees: $5; family, $15; ages 6 and younger, free
Turn off the Spirit Lake Memorial Highway (State Route 504) at milepost 5 for the newly renovated Mount St. Helens Visitor Center within Seaquest State Park to walk the 0.6-mile Wetland Haven Boardwalk Trail or enjoy the just-refreshed interior.
The center’s $1.1 million gallery renovations are devoted to the people, science, environment, and events before and after the eruption including the local Cowlitz Tribe. Look for the “breadcrust bomb” (a volcano-baked rock resembling a loaf of bread) or descend a short flight of stairs to peer into roiling, recreated magma within a volcano.
An 11-minute, placid film about the events and aftermath is appropriate for young children and four more films share the Cowlitz Indian Tribe harvesting camas and discussing lamprey and fishing. Another small display showcases cultural mementos inspired by the eruption, from 45 records to pottery.
Seaquest State Park
- Address: 3030 Spirit Lake Highway, Castle Rock, WA 98611
- Phone: (360) 644-5235
- Hours: 8:00 am-dusk year round
- Fees: $10 per vehicle per day
Seaquest is a 475-acre, year-round camping park set among lush pines in the shadow of the storied Mount St. Helen’s volcano. Seaquest Park boasts forested campgrounds, great hiking trails, and stunning mountain panoramas. Next door to the campground is Silver Lake. The park is connected to the popular Mount St. Helen’s Interpretive Center and Silver Lake by a pedestrian tunnel which leads you to a boardwalk trail over the wetland where ducks and other wildlife thrive.
The park has 52 standard campsites, 18 partial hookup sites, 15 full hookups sites, three hiker/biker sites, one dump station, and five restrooms (one ADA). Maximum site length is 50 feet (may have limited availability). The north, south, and mid-camp loops are in forest settings. Full hookup sites are available in the T-loop only.
Then, drive past manicured homes and gardens, log cabins being reclaimed by the earth and lily pad-filled ponds. If you want to round out your picnic supplies, stop at the just-reopened Drew’s Grocery store in Toutle for crackers, cheese and fruit, cold sandwiches, wraps and salads, or fried chicken and jojos. This is also your last chance to get gas on the drive.
The original 1980 blast destroyed the nearby Harry Gardner Park but the quiet campground has been restored and contains a small playground.

Harry Gardner Park
- Address: 121 Fiest Road, Toutle, WA 98649
- Phone: (360) 577-3030)
Harry Gardner Park is a 65 acre park along the South Toutle River. This Cowlitz County park was destroyed by the Mt. St. Helens eruption and has been recently brought back to life with similar amenities to pre-eruption.
The camping area offers 11 RV sites and 11 tent campsites. RV sites are equipped with electricity and water connections. Each site includes a picnic table and fire pit. There are two ADA accessible RV sites and two tent sites. A sewer dump station is available on site for your use.
The park also offers hiking trails, playground equipment, and easy access to the South Toutle River for fishing and swimming.
Not far from the park, Spirit Peaks Raceway offers an intriguing destination twice monthly—at the raceway’s “drifts,” visitors are welcome to set up chairs and watch drivers play on a racetrack in souped-up vehicles.
Around 19 miles up Spirit Lake Memorial Highway, a 28-foot-tall carved wooden bigfoot welcomes you to the tourist attraction stop of North Fork Survivors. Outside, you’ll also find the rusted, twisted shells of vehicles and an A-frame building sunken in the eruption. The small curiosity-gift shop displays unusual items including plaster footprints purportedly gleaned from a Sasquatch.
Looking for more on Mount St. Helens & Spirit Lake Memorial Highway?
- 45 Years after Mount St. Helens Blast: Predicting Volcanic Eruptions + Climbing an Active Volcano
- A Massive Volcanic Catastrophe Could Hit the Pacific Northwest. Experts Are Sounding the Alarm.
- Mount St. Helens Erupted 44 Years Ago Today: Here’s How It Unfolded
- On the Road to Mount St. Helens
- Mount St. Helens: On the Eruption 40 Years Ago & Future Eruptions

Peak exploration
This area represents the western edge of the Mount St. Helens blast zone
At around milepost 21, the valley floor falls away. You’ll have to use your imagination for the previous century’s devastation as forest, fields, and wildflowers have reclaimed the landscape.
Ascend the mountain’s foothills framed with Weyerhauser-planted timber stands, purple lupins, and brilliant orange Indian paintbrush. A series of stunning bridges span gaps and gorges. A wildlife viewing area sign reminds you to watch for small families of deer that may appear along roadside hills. Other animals in the area include elk herds.

Forest Learning Center
- Address: 17000 Spirit Lake Highway, Toutle, WA
- Operating schedule: 10 am-4 pm daily May 17 through Sept. 28, 2025
- Fee: Free
After 33 miles along State Route 504, at a 2,650-foot elevation, find the Forest Learning Center. This modern Weyerhauser-operated center offers excellent views, a modern playground (with a volcano slide), and a paved loop where you’ll still see snapped trees and upturned roots.
Inside the center, sleek exhibit galleries focus on forest sustainability, harvesting, and management along with eruption survivors’ stories. The center’s short film made up of 1980 news clips shows within a small theater strewn with recreated debris, amplified with cracking thunder and lightning.
Two more viewpoints at milepost 37 (Elk Rock Viewpoint) and milepost 40 (Castle Lake Viewpoint Observation Site) offer bird’s-eye, panoramic perspectives on scarred swaths—though little debris remains. You’ll likely want to bring binoculars for a better view. Stop at either to see the mountain’s crater and lava dome and look down into the valley strewn with massive pillars of volcanic rock and gray debris.

Elk Rock Viewpoint
On State Route 504, at milepost 37, Elk Rock Viewpoint marks the western entrance to Mount St. Helens National Volcanic Monument. View the volcano and crater and the once desolate blast zone, now green with returning vegetation. Below, see the gray, debris-avalanche deposit from the 1980 eruption which still fills the Toutle River Valley. On clear days, glimpse the snow-covered peak of Mount Adams in the distance.
Key features incude:
- Views: It offers panoramic views of Mount St. Helens’ crater, the Toutle River Valley filled with the 1980 eruption’s debris-avalanche deposits, and the recovering blast zone now greening with returning vegetation. On clear days, visitors can also see the snow-capped peak of Mount Adams in the distance.
- Accessibility: The viewpoint has a parking area with about 20 spaces and 3 RV sites. There are no restrooms or potable water available at the site.
- Improvements: Recent upgrades include parking improvements, an information kiosk, and a natural stone wall to enhance the visitor experience while preserving the natural scenic character of the area.
- Historical note: Near the viewpoint is the site of the former Elk Rock Lookout, an 80-foot fire lookout tower built in 1941 and abandoned after damage in the early 1960s. The lookout foundation ruins remain and can be accessed by a short hike east from the viewpoint parking area.

Castle Lake Viewpoint Observation Site
Views of Mount St. Helens, Castle Lake, and the landslide debris deposit from the eruption of Mount St. Helens in 1980. There are benches, interpretive signs, ample parking, and a short trail available.
Castle Lake Viewpoint Observation Site is a scenic overlook located about 40 miles east of Castle Rock along State Route 504 (Spirit Lake Memorial Highway) within the Gifford Pinchot National Forest. It offers visitors panoramic views of Castle Lake, a sub-alpine lake formed by the 1980 Mount St. Helens eruption when a massive debris avalanche dammed the South Fork of Castle Creek.
Key features include:
- Views: The viewpoint provides spectacular vistas of Castle Lake, the surrounding volcanic landscape shaped by the eruption, and distant views of Mount St. Helens’ crater. The lake itself covers just over 250 acres and is surrounded by steep volcanic ridges.
- Access: The site has a parking area on the right side of SR 504, making it accessible for travelers driving the Spirit Lake Memorial Highway.
- Recreation: Nearby hiking trails including the Castle Lake Trail (Forest Trail 221) provide access to the lake and surrounding areas. The trail passes through areas affected by the eruption and offers opportunities to observe wildlife such as elk and waterfowl.
- Ecological importance: Castle Lake is a barrier lake created by volcanic debris, with a constructed spillway to prevent sudden flooding. It has a self-sustaining trout population and is an important site for studying volcanic recovery

Science and Learning Center at Coldwater
- Elevation: 3,100 feet
- Parking: There is a large parking lot with RV parking spots available
The Science and Learning Center at Coldwater is a hands-on education facility operated by the Mount St. Helens Institute (MSHI) in collaboration with the U.S. Forest Service, located at milepost 43 on State Highway 504, approximately 7 miles from the crater of Mount St. Helens and 10 miles west of Johnston Ridge Observatory. Situated in the heart of the 1980 eruption blast zone, it offers stunning views of Mount St. Helens, Coldwater Lake, and the Toutle Valley, making it a prime location for immersive learning about volcanic processes, ecological recovery, and the natural history of the area.
Outdoors, an interpretive trail’s benches invite you to rest and enjoy disparate panoramas of bright buttercups, vivid grasses, once-massive tree stumps and views toward the mountain and valley floor.
A 0.25-mile ADA-accessible Winds of Change Trail and the Elk Bench Trail connect to Coldwater Lake, Coldwater Peak, and Johnston Ridge, offering opportunities to explore the volcanic landscape.
The MSHI’s 2021 master plan aims to expand the center by 2030, increasing overnight program capacity from 500 to 5,000 students annually, adding a public campground with 40 RV/tent sites, improving trails, and remodeling the facility for sustainability and modern educational needs.

Coldwater Lake Recreation Area
At milepost 45, Coldwater Lake Recreation Area, you can go boating, swimming or fly-fishing in Coldwater Lake. Or simply hike the accessible half-mile Birth of the Lake Interpretive Trail’s impressive boardwalk to learn more about this new lake, formed by the volcano.
The trail is approximately 0.5 miles round trip and has no elevation change making it an ideal destination for families and individuals looking for a leisurely walk. Visitors can enjoy the serene environment with opportunities to observe wildlife and take in the scenic views of the lake and surrounding mountains
As an alternative, the 2.4-mile Hummocks Trail only gains 100 feet in elevation and can provide a closer glimpse of the mountain while the road is closed.
Interpretive signs describe features along the first quarter mile of trail as the loop meanders through these hummocks which have been mapped by scientist to their respective spots on St. Helens’ former summit.
You may even spot resident wildlife as the area is habitat for elk, waterfowl, and frogs and newts. Keep an eye out for these little critters but remember the area is still recovering from the eruption, so please stay on the trail and respect the habitat here.
This is the furthest you can travel up, for now—turn around to descend the mountain.
Please note: State Route 504 is gated at mile marker 45.2—just passed the Coldwater Lake area and Hummocks trail parking lot due to the May 2023 landslide. Johnston Ridge Observatory and Loowit viewpoint remain closed. For more information on the landslide: South Coldwater Landslide Information.
Notes: Buy the Mount Saint Helens NVM/RD Northwest Forest Day Pass in advance which you can either print or download to your phone.
You also need a Washington Discover Pass or day pass to explore Seaquest State Park beyond the visitor center.
Worth Pondering…
Each volcano is an independent machine—nay, each vent and monticule is for the time being engaged in its own peculiar business, cooking as it were its special dish, which in due time is to be separately served.
—Clarence Edward Dutton, American geologist (1841-1912)








































































