Trail of Two Forests

Useful Information

Location: Gifford Pinchot National Forest, south of Mount St. Helens.
I-5 exit 21 (Woodland Exit), WA-503 East, then FR-90, through Cougar. Turn left (north) onto FR-83 for 3.5 km, turn left (west) onto FR-8303, 200 m to the Trail of Two Forests parking area.
Open: No restrictions.
Fee: Day pass USD 5.
Classification: Speleologylava mold Speleologylava tube
Light: bring torch
Guided tours: n/a
Photography: allowed
Accessibility: yes, raised wooden trail
Address: Gifford Pinchot National Forest, Forest Headquarters, 10600 N.E. 51st Circle, Vancouver, WA 98682, Tel: +1-360-891-5000, Fax: +1-360-891-5003.
As far as we know this information was accurate when it was published (see years in brackets), but may have changed since then.
Please check rates and details directly with the companies in question if you need more recent info.



The Trail of Two Forests is a parking lot with explanatory plates and a trail with a wooden boardwalk. The trail leads to a small lava tube and numerous tree molds. At least two of the tree molds are big enough to crawl through. One is called The Log Crawl.

The lava tubes and the tree molds were formed by a lava flow from Mt. St. Helens 1,900 years ago.