19,750 cu ft/s (559 m3/s) at the village of Natrona, PA (river mile 24.3)[3]
Basin features
Progression
Allegheny River → Ohio River → Mississippi River → Gulf of Mexico
Tributaries
• left
Tionesta Creek, Clarion River, Redbank Creek, Mahoning Creek, Crooked Creek, Kiskiminetas River, Buffalo Creek, Chartiers Run
• right
Conewango Creek, Brokenstraw Creek, Oil Creek, French Creek, Bull Creek, Deer Creek, Squaw Run, Pine Creek, Girtys Run, Pucketa Creek
National Wild and Scenic River
Type
Recreational
Designated
April 20, 1992
The Allegheny River (/ˌælɪˈɡeɪni/AL-ig-AY-nee) is a 325-mile-long (523 km) headwater stream 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.
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.
This shallow river has been made navigable upstream from Pittsburgh to East Brady by a series of locks and dams that were constructed during 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 forms the Allegheny Reservoir, which was created by the erection of the Kinzua Dam in 1965 for flood control.
The name of the river is derived from one of a number of Delaware/Unami phrases that are homophones of the English name, with varying translations.
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^USGS Data Report 2009 Archived February 14, 2021, at the Wayback Machine Retrieved June 16, 2018.
The AlleghenyRiver (/ˌælɪˈɡeɪni/ AL-ig-AY-nee) is a 325-mile-long (523 km) headwater stream of the Ohio River that is located in western Pennsylvania...
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of the Allegheny Base Ball Club, an independent (non-league) club based in a then-separate city called Allegheny City, across the AlleghenyRiver from Pittsburgh...
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The Allegheny Reservoir (also known as Kinzua Lake and unofficially as Lake Perfidy) is a reservoir along the AlleghenyRiver in Pennsylvania and New...
is composed of three alluvial islands located in the middle of the AlleghenyRiver northeast of Pittsburgh. The islands are just north of the boroughs...
crossings of the Ohio River from the mouth at the Mississippi River at Cairo, Illinois to the confluence of the Allegheny and Monongahela Rivers at Pittsburgh...
main branch of the Mississippi River system at Cairo can be considered to be the Ohio River (and the AlleghenyRiver further upstream), rather than the...
The Great Allegheny Passage (GAP) is a 150-mile (240 km) rail trail between Pittsburgh, Pennsylvania and Cumberland, Maryland. Together with the C&O Canal...
two. Two major rivers share the names of the plateaus, with the AlleghenyRiver rising in the Allegheny Plateau and the Cumberland River rising in the...
impounds the AlleghenyRiver to form Allegheny Reservoir. The administrative headquarters for the Allegheny National Forest is in Warren. The Allegheny National...
ATI Inc. (previously Allegheny Technologies Incorporated) is an American producer of specialty materials headquartered in Dallas, Texas. ATI produces...
The Clarion River is a tributary of the AlleghenyRiver, approximately 110 mi (177 km) long, in west central Pennsylvania in the United States. It drains...
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