Lewis & Clark Trail State Park

Lewis & Clark Trail State Park is a forested preserve along the Touchet River with mature woodland and direct access to the riverbank. The grounds offer camping facilities, kitchen shelters with electricity, and fire pits for day visits and overnight stays.

The park was established by the Washington State Parks and Recreation Commission to protect the natural landscape along this important historic waterway. This area served as a key passage for early explorers and travelers crossing the region.

The park sits along the historic route traveled by the Lewis and Clark Expedition, with interpretive signs showing the importance of this passage for early regional exploration. Visitors can connect to the region's past through the natural landscape that travelers once saw centuries ago.

The park welcomes visitors from spring through fall, with basic amenities including restrooms and designated fire pits throughout the grounds. Winter closures run from November through March to protect the landscape.

The woodland contains an uncommon mix of ponderosa pine, alder, maple, and cottonwood trees that form a green canopy contrasting sharply with the dry grasslands surrounding it. This varied plant community thrives because of the river's moisture in what would otherwise be an arid region.

Location: Columbia County

Address: 36149 Highway 12, Dayton WA 99328-9500

Website: https://parks.wa.gov/539/Lewis-Clark-Trail

GPS coordinates: 46.28820,-118.07200

Latest update: December 13, 2025 12:20