(Washington)
Federation Forest State Park is a 619-acre (251 ha) Washington state park on the White River in King County. The park is located 15 miles (24 km) east of Enumclaw on Route 410 about 30 miles (48 km) below the summit of Chinook Pass. The park features an old-growth forest that includes Douglas fir, western hemlock, Sitka spruce, and western redcedar trees. Park amenities include 7 miles (11 km) of hiking trails, picnicking facilities, and an interpretive center. (Ref: https://en.wikipedia.org/wiki/Federation_Forest_State_Park)