Trail #229 Hummocks

Area Status: Open
This area is Open

Hummocks Trail

Hummocks are the steep sided hills left on the surface of the May 18, 1980 debris avalanche deposits. This 2.4 mile loop trail meanders through hummocks, young alder forests, ponds, and wetlands. The area provides habitat for a variety of animals including elk, waterfowl, and amphibians. Interpretive signs describe features along the first 0.25 mile of trail. 

At a Glance

Current Conditions: 4/02/2019: Three mile loop trail. Trail covered with 0 feet to 2 feet, depending part of trail. State Route 504 may be icy.
Best Season: Spring-Summer-Fall
Busiest Season: Summer
Restrictions: Off trail travel prohibited. No pets, stock, or bicycles. Day-use only.
Closest Towns: Toutle, WA
Operated By: Forest Service
Information Center: Mount St Helens National Volcanic Monument Headquarters and Visitor Centers   

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.



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Day Hiking

Areas & Activities



  Area/Length : 
2.4 miles

  Elevation : 
2400 - 2520


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