Editing Oregon Zoo (section)

=== Washington Park ===
[[File:The Continuity of Life Forms mosaic.jpg|thumb|''The Continuity of Life Forms'', a 1959 mosaic by Willard Martin, is one of the many artworks at the zoo.]]
The zoo at its current site opened on July 3, 1959.<ref name=oreg59jul4>Richards, Leverett G. (July 4, 1959). "Joy Reigns Supreme at West Hills Zoo As Wonders of New Park Are Unveiled". ''The Oregonian'', p. 1.</ref>  It was renamed the '''Portland Zoological Gardens''' at that time,<ref name="zoohistory"/> but remained commonly known as the Portland Zoo. The elephants and big cats were not moved to the new zoo until November.<ref>"Balky Elephants Moved By Force to New Home". ''The Oregonian'', November 4, 1959, p. 14.</ref><ref>"Move to New Zoo Set for Big Cats". ''The Oregonian'', November 10, 1959, p. 19.</ref>  A new interchange was constructed on the adjacent freeway, the [[Sunset Highway (Oregon)|Sunset Highway]], for better access to the new zoo.<ref>"Road to Open to New Zoo". ''The Oregonian'', October 10, 1959, p. 5.</ref>