A fort established by the French in 1754 where the [[Allegheny River|Allegheny]] and [[Monongahela]] jin to form the [[Dan's History Web/US 1/Topic Index/Ohio River]], in what is now [[Fort Duquesne|Pittsburgh]]. The French destroyed and abandoned the fort in November 1758 during the [[Dan's History Web/US 1/Topic Index/French and Indian War]] and the British built Fort Pitt from 1759 to 1761.