Directions
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.
Activities
HIKING
Related Link(s)
Provides access to: Hummocks Trail #229, Boundary Trail #1 (from Hummocks #229 to Johnston Ridge Observatory).
Ample parking.
