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Fort Duvall, Boston Harbor, MA

Fort Duvall was built on Hog Island between 1917 and 1922. Originally known as Hog Island Military Reservation until 1922. Battery Frank S. Long, with 2 16" guns, kept the area safe between 1927 and 1948. After WWII the fort was on caretaker status until 1955 when it became a NIKE missile site. In 1987 the Spinnaker Condominium Complex built 105 condos right on top of the old fort and renamed it Spinnaker Island. It's now a private island with the condo complex using the fort.





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