Allegheny River

river in western Pennsylvania and New York, United States
Freeport bridge.jpg

The Allegheny River (/ˌæləˈɡni/ AL-ə-GAY-nee) is a principal tributary of the Ohio River. It is located in the Eastern United States.[1]

The Allegheny River joins with the Monongahela River to form the Ohio River at the "Point" of Point State Park in Downtown Pittsburgh, Pennsylvania. The Allegheny River is, by volume, the main headstream of both the Ohio and Mississippi Rivers.


  1. Zeisberger, David (1999). David Zeisberger's History of the Northern American Indians in 18th Century Ohio, New York and Pennsylvania. Wennawoods Publishing. p. 33. ISBN 1-889037-17-6.