Maryhill State Park is a 99-acre camping park with 4,700 feet of waterfront on the Columbia River in Klickitat County. The area is significant for its natural beauty, its access to the surrounding natural wonders and its cultural history. A full-scale model of Stonehenge stands near the park. Maryhill State Park was acquired by lease from the U.S. Army Corps of Engineers in 1972 at no cost. Sam Hill, considered a local eccentric, built a “castle” for his daughter, Mary, on a hill, and named it “Maryhill.” He designated the beautiful building, originally designed as a family home, as an art museum before the end of its construction.