Trail #1: Boundary- Hummocks to Johnston Ridge

Area Status: Open

Beginning at its intersection with the short loop trail Hummocks #229 (area is unavailable), this 4.6 mile section of the Boundary Trail #1 (area is unavailable) offers hikers the opportunity to see firsthand the effects of the May 1980 eruption. Views of Mount St. Helens and North Fork Toutle River valley are among the sights. To protect plants, animals and scientific studies, pets, bicycles, and off-trail travel are prohibited. Day use only.

Begin at Hummock/Boundary Trailhead and take the Hummocks Trail #229 for 0.5 miles to it's junction with Boundary Trail #1. Elk can often be seen around the junction, grazing in the grassy meadows. The trail crosses debris avalanche deposits before beginning the steep and steady climb of Johnston Ridge. Switchbacks cross patches of blast shattered stumps and blown down trees. After the initial 1200-foot elevation gain, the trail traverses Johnston Ridge, offering views of the debris-filled North Fork Toutle River valley and Mount St. Helens. The trail then passes Loowit Viewpoint, climbs 200 feet in 0.8 mile, and brings you to Johnston Ridge Observatory, 4.6 miles from the junction with Hummocks Trail.

Stop here or continue on Boundary Trail #1 towards spirit lake access via Truman Trail #207.

At a Glance

Current Conditions: 03/25/2022: Higher elevation trails are often snow covered until July.
Fees: No fee or pass required at Hummocks Trail Trailhead. See Mount St. Helens Map for fee and payment sites.
Usage: Light
Best Season: Summer-Fall
Busiest Season: Summer
Restrictions: Due to the sensitivity of the area: No dogs, bicycles, camping, fires or livestock allowed in the restricted area. Off trail travel prohibited without a special use permit.
Closest Towns: Toutle, WA, Castle Rock, WA
Operated By: Forest Service
Information Center:  

General Information


From Castle Rock, WA head east on State Highway 504 (Spirit Lake Highway) for 42.7 miles take the right branch and stay on 504 and drive another 2 miles to the Hummock/Boundary Trailhead on the right. 


Day Hiking

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  Area/Length : 
4.6 miles

  Elevation : 
2500' - 4200'