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Trailhead: Ape Canyon

A small parking area provides access to Ape Canyon Trail #234

Note: this site can exceed its parking capacity during the busy summer months. Additional parking may be available at Lava Canyon or Lahar Viewpoint. 

General Information

June - October

Day use only: open sunrise to sunset

Recreation Passes honored: Digital Day Pass, Northwest Forest Pass, and Interagency Recreation Passes.  

Fee payment station available at nearby Lava Canyon Interpretive Site.

Day Use:
$5 per vehicle per day
$30 per annual

Contact Name: Mount St. Helens National Volcanic Monument Headquarters

Contact Phone: 360-449-7800

Getting There

Latitude / Longitude

Latitude: 46.165526

Longitude: -122.09105

Directions

From Cougar WA take Lewis River Road east for 2.8 miles. The road then changes to Forest Road 90. Continue on Forest Road 90 to Forest Road 83, approximately 4 miles and turn left. Drive Forest Road 83 for 8.4 miles to the Ape Canyon Trailhead. The trailhead is on the left just before the end of the road at the Lava Canyon Trailhead.

Travel Considerations

Forest Road 83 is paved but rough. Use caution. 

Parking

Limited parking available (approximately 7 vehicles). Additional parking nearby at Lava Canyon Interpretive Site and Lahar Viewpoint

Facility and Amenity Information

Restrooms

Restrooms are not available at this site.

Restrooms available at Lava Canyon Trailhead. 

Water

Potable water is not available at this site.

Picnic Tables

Picnic tables are not available at this site.

Nearby Trails

Recreation Opportunities

Last updated July 8th, 2025