Fort Pitt was a fort built by British forces between 1759 and 1761 during the French and Indian War at the confluence of the Monongahela and Allegheny rivers, where the Ohio River is formed in western Pennsylvania. It was near the site of Fort Duquesne, a French colonial fort built in 1754 as tensions increased between Great Britain and France in both Europe and North America. The French destroyed Fort Duquesne in 1758 when they retreated under British attack.
A Journey in North America, containing a survey of the countries watered by the Mississipi, Ohio, Missouri and other affluing rivers... illustrated by 36 maps, plans, views and divers cuts - by Victor Collot - btv1b530967428 (12 of 40)
Fort Pitt (Pennsylvania), map published in 1765
BASTIONS OF HISTORIC FORT PITT ARE MARKED BY A PLAQUE IN THE GATEWAY CENTER AREA OF DOWNTOWN PITTSBURGH, PENNSYLVANIA... - NARA - 557269
Washington Pennsylvania Map
(Braddock's route, 1755, Fort Cumberland to Fort Pitt. LOC gm71002325