Ape Cave Trail is a 2.6 mile out and back trail that features a cave and is good for all skill levels. The trail is primarily used for hiking & walking and is accessible year-round.
From Vancouver, WA, north on 1-5 to Highway 503, exit 21. Drive east 35 miles to Forest Service Road 83. Turn left and drive 2 miles to Forest Service Road 8303. Turn left and drive 1.5 miles to the trailhead on the right.
A federal Northwest Forest Pass is required to park here
Gifford Pinchot National Forest
Mount St. Helens National Volcanic Monument
42218 Northeast Yale Bridge Road
Amboy, WA 98601