http://maps.google.com/maps/place?cid=7209631443501194447&q=federation+forest+state+park&hl=en&gl=us
wikipedia says:
Federation Forest State Park in King County, Washington is one of the Washington State Parks.[1] It is a day-use park of 619 acres (251 ha) of old-growth evergreen trees along theWhite River. Available activities include 12 miles (19 km) of hiking trail, an interpretive center with gift shop, birdwatching, wildlife viewing, and fire circles.[2]