USS Constitution fires a 21-gun salute near Fort Independence on Castle Island during the ship's annual Independence Day underway demonstration.

BOSTON (Jul. 04, 2014) USS Constitution fires a 21-gun salute near Fort Independence on Castle Island during the ship's annual Independence Day underway demonstration. This will the last time Constitution will be underway on July 4th until she completes a three-year dry dock availability for planned restorations in 2018. (U.S. Navy photo by Mass Communication Specialist 3rd Class Victoria Kinney) File# 140704-N-XP344-154