Balclutha, also known as Star of Alaska, Pacific Queen, or Sailing Ship Balclutha, is a steel-hulled full rigged ship that was built in 1886. She is the only square rigged ship left in the San Francisco Bay area and is representative of several different commercial ventures, including lumber, salmon, and grain. She is a U.S. National Historic Landmark and is currently preserved at the San Francisco Maritime National Historical Park in San Francisco, California. She was added to the National Register of Historic Places on 7 November 1976.[1]