page_title: Allegheny River
section_title: Pennsylvania
hierarchical_section_title: Allegheny River / Settlements / Pennsylvania
caption_attribution_description: English: The source of the Ohio River at “The Point” in Point State Park, Pittsburgh, Pennsylvania. The Allegheny River (left) and the Monongahela River (right) join to form the Ohio here. The West End Bridge crosses the Ohio in the foreground.
context_page_description: The Allegheny River is a 325-mile long headwater stream of the Ohio River in western Pennsylvania and New York, United States. The Allegheny River 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 on 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. Historically, the Allegheny was considered to be the upper Ohio River by both Native Americans and European settlers.
  The shallow river has been made navigable upstream from Pittsburgh to East Brady by a series of locks and dams constructed in the early 20th century. A 24-mile long portion of the upper river in Warren and McKean counties of Pennsylvania and Cattaraugus County in New York is the Allegheny Reservoir also known as Lake Kinzua, created by the erection of the Kinzua Dam in 1965 for flood control.
context_section_description: Applewold
  Arnold
  Aspinwall
  Blawnox
  Brackenridge
  Cheswick
  Coudersport
  Creighton
  East Brady
  East Hickory
  Eldred
  Emlenton
  Etna
  Ford City
  Foxburg
  Franklin
  Freeport
  Harmarville
  Kennerdell
  Kittanning
  Lower Burrell
  Manorville
  Millvale
  Natrona
  New Kensington
  Oakmont
  Oil City
  Parker
  Penn Hills
  Pittsburgh
  Plum
  Port Allegany
  Roulette
  Schenley
  Sharpsburg
  Springdale
  Starbrick
  Tarentum
  Templeton
  Tidioute
  Tionesta
  Verona
  Warren
  West Hickory
  West Kittanning
  Woodland Heights
  Youngsville
caption: The Allegheny (left) and Monongahela (right) join to form the Ohio River at Pittsburgh, Pennsylvania.
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