The Mary S. Young State Recreation Area is a state park in the U.S. state of Oregon. It is located within the city of West Linn, alongside the Willamette River and is heavily wooded. It offers more than five miles of hiking trails, bicycle trails, picnicking, bird watching, fishing, sports fields, and a very popular dog off-leash area.The park is owned by the Oregon Parks and Recreation Department, and operated through a cooperative agreement with West Linn. The park has recreation areas, wooded trails and a rocky beach.
