Pittsburgh Three Rivers Regatta was created in 1977.
The Ohio, Monongahela and Allegheny Rivers
Pittsburgh, Pennsylvania
Three Rivers - train - was created in 1995.
Three Rivers Press was created in 1992.
Three Golden Rivers was created in 1948.
Three Rivers League was created in 1968.
The confluence of the Alleghaney and Monogahela Rivers form the Ohio River at Point State Park in Pittsburgh. Thus the three rivers that "come together" at that point are the Ohio, Allegahaney and Monogahela.
The phrase "Three Rivers" is associated with the location of Pittsburgh, Pennsylvania.The three rivers in Pittsburgh are the Monongahela River, the Allegheny River and the Ohio River.The phrase "Three Rivers" has obviously been in use since Whites entered the area. But by the 1970s, it became a marketing campaign strategy. From events like The Three Rivers Arts Festival, every imaginable business and endeavor was named Three Rivers ___. Three Rivers Stadium, now torn down, was home to the Pittsburgh Pirates (baseball) and was one of the most famous places.
The Allegheny River and Monongahela River join to form the Ohio River at Pittsburgh, Pennsylvania. Hence the stadium was named after the three rivers that converge there.
Three Rivers Arts Festival was created in 1959.
Three Rivers Athletic Conference was created in 2011.
Three Rivers Computer Corporation was created in 1974.