Allegheny River On US Map

The Allegheny River is a 325-mile-long tributary of the Ohio River that is located in western Pennsylvania and New York in the United States. It runs from its headwaters just below the middle of Pennsylvania's northern border, northwesterly into New York, then in a zigzag southwesterly across the border and through Western Pennsylvania to join the Monongahe…
The Allegheny River is a 325-mile-long tributary of the Ohio River that is located in western Pennsylvania and New York in the United States. It runs from its headwaters just below the middle of Pennsylvania's northern border, northwesterly into New York, then in a zigzag southwesterly across the border and through Western Pennsylvania to join the Monongahela River at the Forks of the Ohio at Point State Park in Downtown Pittsburgh, Pennsylvania.
  • Country: United States
  • State: Pennsylvania, New York
  • Length: 325 mi (523 km)
  • Basin size: 11,580 sq mi (30,000 km²)
  • Progression: Allegheny River → Ohio River → Mississippi River → Gulf of Mexico
  • Designated: April 20, 1992
  • Type: Recreational
Data from: en.wikipedia.org