The Old Stone Tavern (also called Coates Tavern, and the Old Stone Inn) at 434 Greentree Road in the West End neighborhood of Pittsburgh, Pennsylvania. Its original date of construction was during the early 1780s along the old Washington Pike Road. There is an old date listed on the cornerstone of the Inn that indicates the year 1756, which would make it the oldest building in Allegheny County, Pennsylvania, but the cornerstone was added on as a gimmick to get more bar patronage during the mid 1900s. There are supposedly account ledgers from the Inn that have been found at the Carnegie Library from 1793 to 1796. That seems to suggest that the tavern was around by the late 1700s; 1782 to be exact.
Old Stone Tavern was built shortly after the American Revolution by Daniel Elliott, who served in the war. It was continuously operated as a restaurant or bar until 2009.
The Old Stone Tavern is located at a bend in what was the historic Washington and Pittsburgh Turnpike, a toll road connecting Pittsburgh to Washington County and National Road. It is believed to have served as a tollhouse and frontier trading post and likely played a role in the Whiskey Rebellion, the late 18th-century uprising against a federal excise tax on liquor.
Pittsburgh's Old Stone Tavern Friends Trust incorporated in December of 2013 with the mission statement "To secure Pittsburgh's Old Stone Tavern and its property, provide for its long term preservation, and educate the public regarding its significance in United States History".