Lewis and Clark State Park (SW Washington)

Lewis and Clark State Park is a 616-acre camping park in a stand of old-growth forest. This cool forested space east of I-5 and south of Chehalis offers hiking and horseback riding through a rare stand of old-growth trees on the historic north spur of the Oregon Trail. The park provides an all-American camping experience, with fire circles, an amphitheater and horseshoe pits.