Siege of Fort Pitt Siege of Fort Pitt The Siege of Fort Pitt took place during June and July 1763 in what is now the city of Pittsburgh, Pennsylvania, United States. The siege was a part of Pontiac's War, an effort by Native Americans to remove the British from the Ohio Country and Allegheny Plateau after they refused to honor their promises and treaties to leave voluntarily after the defeat of the French. The Native American efforts of diplomacy, and by siege, to remove the British from Fort Pitt ultimately failed. This event is best known as an early instance of biological warfare, where
U.S. Route 60 in Illinois U.S. Route 60 in Illinois U.S. Route 60 and U.S. Route 62 (US 60/US 62) run for a very short distance within the state of Illinois. They follow the same road for their entire existence within the state. They run around Fort Defiance in Cairo. It runs from the Cairo Mississippi River Bridge over the Mississippi River east to the Cairo Ohio River Bridge over the Ohio River; the Ohio River Bridge also carries US 51. The bridges cross the two rivers just north of the mouth of the Ohio. US 60/US 62 enter Illinois via the Cairo Mississippi River