USS Narwhal (SSN-671)
From Canadian Power Wiki
Her keel was laid down on January 17th 1966 by the Electric Boat Division of General Dynamics Corporation, in Groton, Connecticut. She was launched on September 9th 1967 sponsored by Glynn R. Donaho, and commissioned on July 12th 1969 with Commander W. A. Matson in command. She was decommissioned on July 1st, 2004.
On April 10th 2010, Narwhal became the centerpiece exhibit at the National Submarine Science Discovery Center (NSSDC) in Newport, Kentucky.