Maryhill State Park is a public recreation area on the Columbia River in Klickitat County, Washington.

The 81-acre (33 ha) state park offers 4,700 feet (1,400 m) of shoreline and facilities for camping, hiking, boating, fishing, and swimming.

The Maryhill Stonehenge, a full-scale concrete replica of Stonehenge, stands on a bluff not far from the park.

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