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Land ActivitiesCulture & Tours
Attractions open May 1 to October 31. Grounds open year round. Check website for hours.
Off US Route 1/ Route 3 - Turn onto Route 174, travel 1/4 mile toward 740 Fort Knox Road, Prospect, Maine 04981.
The Fort Knox Historic Site features one of the best-preserved examples of coastal defense fortifications constructed in the mid-1800s. It is America's first fort named after Major General Henry Knox.