The park contains some of the last remaining old-growth forest in the lowlands of Southwest Washington.
It was developed in the 1930s by the Civilian Conservation Corps (CCC), which built many of the original stone and timber structures.
The park features a specialized equestrian camping area with dedicated hitching rails and trailer parking.
The forest floor is characterized by an extensive understory of sword ferns and salal.
The park name commemorates the 1804–1806 expedition, though the explorers did not camp on this specific site.
Lewis and Clark State Park is a 615-acre forested camping park located in Toledo, Washington, notable for its significant stand of old-growth Douglas fir trees. The park features a dense, mature forest canopy that has remained largely untouched by modern logging. Visitors can access over 5 miles of hiking and equestrian trails that wind through the protected woodland. The grounds offer 25 standard campsites and 17 partial-utility sites equipped with water and electricity. Recreational facilities include three kitchen shelters and extensive picnic areas suitable for large groups. The park is situated near the Chehalis River and provides a natural environment for birdwatching and wildlife spotting. It serves as a quieter alternative to more developed state parks in the region.
The elevated hiking trail sections that look upward into the canopy of the oldest Douglas firs.
Bring insect repellent during the summer months, as the dense forest cover can retain moisture and attract mosquitoes.
Check the Washington State Parks website for burn bans before planning a campfire.
Wear sturdy, waterproof hiking boots if visiting after autumn rains, as trails can become muddy.
Do not attempt to access the riverbanks in unmarked areas, as they are prone to erosion and steep drops.
The park operates on a seasonal basis; many campsites and facilities close during the winter months.
Stay on marked trails to protect the sensitive old-growth root systems; pack out all trash.
