Allegheny River

The Allegheny River (/ˌæləˈɡni/ AL-ə-GAE-nee) is a 325-mile (523 km) 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.

Allegheny River
The Allegheny River, looking upstream at Freeport, Pennsylvania
Location
CountryUnited States
StatePennsylvania, New York
Physical characteristics
Source 
  locationAllegany Township, Potter County, Pennsylvania, near Coudersport, Pennsylvania at the corner of Ben Green and Cobb Hill Rd
  coordinates41.8728449°N 77.874998°W / 41.8728449; -77.874998[1]
  elevation2,450 feet (750 m)[2]
Mouth 
  location
Ohio River at Pittsburgh, Pennsylvania
  coordinates
40.4434025°N 80.0150536°W / 40.4434025; -80.0150536[1]
  elevation
712 feet (217 m)[1]
Length325 miles (523 km)
Basin size11,580 square miles (30,000 km2)
Discharge 
  average19,750 cu ft/s (559 m3/s) at the village of Natrona, PA (river mile 24.3)[3]
Basin features
ProgressionAllegheny River → Ohio RiverMississippi RiverGulf of Mexico
Tributaries 
  leftTionesta Creek, Clarion River, Redbank Creek, Mahoning Creek, Crooked Creek, Kiskiminetas River, Buffalo Creek, Chartiers Run
  rightConewango Creek, Brokenstraw Creek, Oil Creek, French Creek, Bull Creek, Deer Creek, Squaw Run, Pine Creek, Girtys Run, Pucketa Creek
TypeRecreational
DesignatedApril 20, 1992

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.

The name of the river comes from one of a number of Delaware/Unami phrases which are homophones of the English name, with varying translations.


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This article uses material from the Wikipedia article Allegheny River, and is written by contributors. Text is available under a CC BY-SA 4.0 International License; additional terms may apply. Images, videos and audio are available under their respective licenses.