The Maryhill Stonehenge is a full-size, astronomically-aligned replica of Stonehenge located in Maryhill, Washington. It was commissioned in the early 20th century by businessman Samuel Hill and dedicated on July 4, 1918 as a memorial to those that died in World War I. The memorial was completed in 1929. It is constructed of concrete.
A second formal dedication of the monument took place upon its completion on May 30, 1929.