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Mount St. Helens National Volcanic Monument & Surrounding Area

The Mount St. Helens National Volcanic Monument and District contains many wonderful places to see and explore. On the west side of Mount St Helens you can drive into the heart of the blast zone via State Route 504.  The eastern side of the mountain offers summer and fall opportunities to view the crater and Spirit Lake, visit interpretive sites, and various hiking trails. South of Mount St. Helens visitors will find lava flows, lush forests and multiple recreation opportunities year-round including winter recreation. Mount Margaret Backcountry area offers rugged, steep trails and amazing landscapes that typify the rugged backcountry. 

About the Mount St. Helens 1980 Eruption & Aftermath

On the morning of May 18, 1980, a magnitude 5.1 earthquake triggered the collapse of the summit and north flank of Mount St. Helens and formed the largest landslide in recorded history. In 1982 Congress designated the 110,000-acre Mount St. Helens National Volcanic Monument. The following decades have offered insight into the biological recovery of ravaged landscapes.

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Drive into the heart of the blast zone. Spectacular crater views, visitor centers, picnic areas and hikes await. Visit the Mount St. Helens West: State Highway 504 for more detailed information and learn what's open along State Route 504. 

Visit the Science and Learning Center at Coldwater and various recreation sites such as the Hummocks Trail, Coldwater Lake, South Coldwater Trailhead and access Mount Margaret Backcountry.

See the Mount St. Helens East: Forest Roads 25 & 99 for information about the Mount St. Helens National Volcanic Monument's vast blown down forest and views of the legendary Spirit Lake and access to Mount Margaret Backcountry.

On Forest Road 99, there are 8 interpretive sites to enjoy views and learn about the volcano including: Bear Meadow Interpretive Site, Blast Edge Viewpoint Monument Entry, Miners Car Interpretive Site, Meta Lake Interpretive Site, Cascade Peaks, Harmony Falls Viewpoint, Smith Creek Picnic and Viewpoint, and Windy Ridge Interpretive Site.

Visit the Mount Margaret Backcountry Page for more information about the backcountry's spectacular views of the Mount St. Helen's blast zone, Spirit Lake and Mount Adams.

Lava flows, waterfalls, caves, and lush forest abound. Visit Mount St. Helens South: Forest Roads 83 & 81 for more information about unique recreation opportunities on the south side of Mount St. Helens. 

Key sites in this area include: Ape Cave, Trail of Two Forests Interpretive Site, June Lake Trail, Lahar Viewpoint, Ape Canyon Trail, Lava Canyon Interpretive Site, Climber’s Bivouac Trailhead, Blue Lake Trailhead,  and Kalama Horse Camp Campground.

Recreation Sites

Showing: 1 - 10 of 39 results

Ape Cave Interpretive Site

Site Open
Climbing and Caving Hiking Outdoor Science and Learning
Explore a chilly, pitch-black lava tube over two miles long. A short, paved, accessible trail beneath towering trees leads to a stairwell into the cave. The ¾ mile, one-way lower cave route is…

Bear Meadow Interpretive Site

Site Open
Outdoor Science and Learning Picnicking
On May 18, 1980, Gary Rosenquist was camped at this site and took a series of photos capturing the first few moments of the landslide and eruption, barely escaping with his life. The site offers a…

Blast Edge Viewpoint; Monument Entry

Site Open
Outdoor Science and Learning
The lateral blast during the 1980 eruption thundered across the landscape as far as 17 miles from the volcano, blasting away, flattening or leaving standing dead trees. Stop and marvel at the…

Campground: Sunset Falls Campground and Day Use

Site Open
Picnicking Outdoor Science and Learning
A great place for a picnic, hike or just relaxing at the falls. Sunset Falls Campground/Day Use Area is located on the western edge of the forest, on the Lewis River. Visitors enjoy scenic views of…

Castle Lake Viewpoint Observation Site

Site Open
Outdoor Science and Learning
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…

Harmony Falls Viewpoint

Site Open
Outdoor Science and Learning Hiking
Enjoy a view of Spirit Lake with its still-floating raft of logs deposited during the 1980 eruption. An interpretive display shares the magic of the forest and lake, pre-eruption. Depart on the…

Horse Camp: Green River

Site Open
Horse Riding and Camping
Each campsite is limited to two trailer rigs or three vehicles. There is no potable water here; the closest drinking water is located 5 miles south on Road 26 at the Norway Pass Trailhead. Nearby…

Horse Camp: Kalama

Site Open
Hiking Picnicking Horse Riding and Camping
Kalama Horse Camp is located just outside the west boundary of Mount St. Helens National Volcanic Monument, on the Gifford Pinchot National Forest. 27 sites accommodate primarily equestrian users,…

Johnston Ridge Observatory

Site Temporarily Closed
Outdoor Science and Learning Hiking
ALERT!  Johnston Ridge Observatory is unreachable due to a landslide that occurred May 2023 that has closed both lanes of traffic on State Route 504. More info: South Coldwater Slide…

Last updated July 15th, 2025