Discover Rivers Discover Rivers
LAKES RIVERS MARINAS NEWS HOUSES EVENTS MAPS
Lake Store

Allegheny River

 
Length: 325 miles (523 kilometers)

Allegheny River (A-luh-GAI-nee), a navigable river 325 miles long, rises in north central Pennsylvania; flows northwest in Pennsylvania into New York state and then southwest reentering Pennsylvania and joins the Monongahela River in Pittsburgh to form the Ohio River.