Fort Trois-Rivières (French: Fort des Trois-Rivières) was a 17th-century wooden fort in New France. It was built between 1634 and 1638 by the Sieur de Laviolette. The construction of a wooden fort on this site marked the second permanent settlement in New France and the foundation of the modern city of Trois-Rivières, Quebec, Canada. It was recognized as a National Historic Site of Canada on January 30, 1920. It was protected by a palisade that repelled a large Iroquois attack in 1653 and was in use until 1668. It was demolished following a peace treaty signed with the Iroquois in 1668.