Ginkgo Petrified Forest State Park is a 7,470-acre park with camping at Wanapum Recreational Area. The park features 27,000 feet of freshwater shoreline on the Wanapum Reservoir along the Columbia River. Ginkgo Petrified Forest, discovered in the late 1920s, is a registered national natural landmark.
Source: wa_state_parks · last verified 2026-05-19