Is fort duquesne in Pittsburgh

Yes, Fort Duquesne was located in what is now Pittsburgh, Pennsylvania. It was a French fort established in the mid-18th century at the confluence of the Allegheny and Monongahela rivers, where they form the Ohio River. The fort played a significant role during the French and Indian War before being captured by the British in 1758 and subsequently replaced by Fort Pitt. Today, the site is part of Point State Park.