Fort Saint-Frédéric was a French fort built on Lake Champlain to secure the region against British colonization and control the lake. It was located in modern New York State across the lake from modern Vermont at the town of Crown Point, New York. The fort, whose construction began in 1734, was never attacked, and was destroyed in 1759 before the advance of a large British army under General Jeffery Amherst.
The British constructed the much larger Fort Crown Point next to the ruins of Saint-Frédéric; the new fort also never came under attack. Its small garrison was captured in 1775 in the early days of the American Revolutionary War, after which Fort Crown Point also fell into ruin. The fort sites at Crown Point were preserved in the Crown Point State Historic Site in 1910, and both ruins are National Historic Landmarks.
Wikipedia https://en.wikipedia.org/wiki/Fort_Saint-Frédéric
Address 12928, United States
Coordinates 44°1'49.323" N -73°25'34.161" E