Fort Dummer
Brattleboro, United States
Fort Dummer was built in the winter of 1724 in what is now the Town of Brattleboro in southeastern Vermont. Today, it is notable as the first permanent European settlement in Vermont. The original site of the fort is now lost below the waters of the Connecticut River impoundment of the Vernon Dam.
Fort data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).