Lyons Ferry State Park is a public recreation area located near the confluence of the Snake and Palouse rivers, seven miles (11 km) northwest of Starbuck, Washington.

The state park is on Route 261, abreast of Lake Herbert G. West, a reservoir on the Snake River created with the construction in the 1960s of the Lower Monumental Dam some 17 miles (27 km) downstream.

[2] The area is managed cooperatively by the Washington State Parks and Recreation Commission and the U.S. Army Corps of Engineers,[2] which operates the Lyons Ferry Marina.

[4] The U.S. Army Corps of Engineers began park construction in 1969, then leased the site to the state in 1971.

[5] The Army Corps of Engineers operated the property as Lyons Ferry Park and Lyons Ferry Marina[6] until 2015, when it returned to Washington State Park status with the signing of a new lease.