
Allegheny River watershed
The
Allegheny River is a principal
tributary of the
Ohio River; it is located in the
Eastern United States. The Allegheny River joins with the
Monongahela River to form the Ohio River at the "
Point" of
Point State Park in
Downtown Pittsburgh, Pennsylvania.
The
river is approximately long, running through the
U.S. states of
New York and
Pennsylvania. It drains a rural
dissected plateau of in the northern
Allegheny Plateau, providing the northeastern most drainage in the watershed of the
Mississippi River. Its tributaries reach to within of
Lake Erie in southwestern New York.
The
valley of the river has been one of the most productive areas of energy extraction in U.S. history; with extensive deposits of
coal,
petroleum, and
natural gas.
Etymology
The word
Allegheny comes from the
Lenape (Delaware)
Indians. Although it is usually translated as "fine river", the meaning is not definitively known. There is a Lenape legend of a tribe called "Allegewi" who used to live along the river.
The following account of the naming of the Allegheny River was given by Moravian missionary David Zeisberger in 1780: All this land and region, stretching as far as the creeks and waters that flow into the Alleghene the Delawares called Alligewinenk, which means "a land into which they came from distant parts." The river itself, however, is called Alligewi Sipo. The whites have made Alleghene out of this, the Six Nations calling the river the Ohio.
Other Indians, such as the
Iroquois, considered the Allegheny and Ohio rivers as the same, as is suggested by a New York State road sign on
Interstate 86 that refers to the Allegheny river secondarily as
O Hi Yo.
In New York, areas around the river are often named with the alternate spelling
Allegany in reference to the river; for example, the
Village of Allegany and
Allegany State Park.
Course

Much of the Allegheny River's course is through hilly woodlands.
The Allegheny rises in north central Pennsylvania, in central
Potter County, approximately 10 miles (16 km) south of the New York border. It flows west past
Coudersport then turns north into western New York State, looping westward across southern
Cattaraugus County for approximately 30 miles (48 km), past Portville,
Olean,
St. Bonaventure University and
Salamanca and flowing through Seneca Indian Nation lands close to the northern boundary of
Allegany State Park before re-entering northwestern Pennsylvania approximately 20 miles (32 km) southeast of
Jamestown, New York.
It flows in a broad zigzag course generally southward across
Western Pennsylvania; first flowing southwest past
Warren,
Tidioute,
Tionesta,
Oil City, and
Franklin, forming much of the northwestern boundary of
Allegheny National Forest. South of Franklin it turns southeast across
Clarion County in a
meandering course, then turns again southwest across
Armstrong County, flowing past
Kittanning,
Ford City, Clinton and
Freeport.

The Highland Park Bridge crosses the Allegheny River at
Aspinwall,
Pennsylvania; just above Lock and Dam 2.
The river enters
Allegheny County, the
Pittsburgh suburbs, and the City of Pittsburgh from the northeast. It passes Sligo,
Karns, and
Natrona in
Harrison Township; Metcalf, Braeburn,
Lower Burrell, and
New Kensington in
Westmoreland County; Brackenridge, Tarentum, Creighton, Clyde, Springdale, Harmarville, Blawnox, Fox Chapel, Sharpsburg, Etna, Millvale, Lawrenceville, Highland Park, The North Side, Downtown Pittsburgh, Point State Park and joins with the
Monongahela River at "The Point" in Downtown Pittsburgh, Pennsylvania to form the
Ohio River.
Water from the Allegheny River eventually flows into the
Gulf of Mexico via the Ohio River and the
Mississippi River.
Tributaries
In its upper reaches, the Allegheny is joined from the south by
Potato Creek in
McKean County, Pennsylvania and from the north by
Olean Creek at
Olean, New York. The
Great Valley Creek and
Little Valley Creek join the river from the north in
Salamanca, New York before becoming the
Allegheny Reservoir.
After re-entering Pennsylvania, the river is joined from the east by
Kinzua Creek upstream of Warren; from the north by
Conewango Creek at Warren; from the west by
Brokenstraw Creek; from the north by
Oil Creek at Oil City; from the west by
French Creek at Franklin; from the east by the
Clarion River in
Parker, one of its principal tributaries, in eastern Clarion County; from the east by
Crooked Creek southeast of Kittanning; and from the east by the
Kiskiminetas River, another principal tributary, at
Schenley.
Buffalo Creek enters at Freeport,
Chartiers Run enters at Lower Burrell,
Bull Creek enters at Tarentum, and
Pucketa Creek enters near New Kensington. Many other creeks, runs, and streams enter or join with the Allegheny River.
History
In the 16th century, control of the river valley passed back-and-forth between
Algonquian-speaking
Shawnee and the
Iroquois. By the time of the arrival of the
French in the early 18th century, the Shawnee were once again in control and formed an alliance with the French against the incursion of
British settlement across the
Allegheny Mountains. The conflict over the expansion of British settlement into the Allegheny Valley and the surrounding
Ohio Country was a primary cause of the
French and Indian War in the
1750s. During the war,
the village of Kittaning, the principal Shawnee settlement on the river, was
completely destroyed by British reprisal raids from Central Pennsylvania.
Nevertheless, the British, after gaining control of the area in the 1763
Treaty of Paris, kept the area closed to white settlement, in part to repair and maintain relations with the Native Americans. The pressure to open the river valley and the surrounding area to settlement is considered by historians to be one of the root causes of the
American Revolutionary War in the following decade.
During the 19th century, the river became a principal means of navigation in the upper Ohio valley, especially for the transport of coal. Although the building of the railroads lessened the importance of the river somewhat, the lower river (navigable as far as
East Brady, Pennsylvania through locks) has continued to serve as route of commercial transportation until the present day. In 1859, the first U.S. petroleum was drilled north of the river at
Titusville.
One of the underlying premises of the
Genesee Valley Canal was its connection to the river, opening a trade route from
Rochester, New York to the west. The advent of the railroads destroyed any interest that Pennsylvania might have had in participating by improving navigation on the river.
In 1965, the completion of the federally-sponsored
Kinzua Dam for
flood-control in northwestern Pennsylvania east of Warren created the long
Allegheny Reservoir, part of which is included in the
Allegheny National Recreation Area. The dam flooded parts of lands deeded "forever" to the
Seneca Nation of Indians by the 1794
Treaty of Canandaigua, and to lands given to
Cornplanter and his descendants. The event is described in the
Johnny Cash song "As Long as the Grass Shall Grow" from the 1964 album
Bitter Tears: Ballads of the American Indian, which focuses on the history of and problems facing Native Americans in the United States.
The construction of the dam and the filling of the Allegheny Reservoir also necessitated the elimination of the small town of
Corydon, which was located at the confluence of Willow Creek with the Allegheny River; and the small town of
Kinzua, which was located at the confluence of Kinzua Creek with the Allegheny River. All residents of both towns were forced to move.
Many prominent individuals opposed the construction of the dam at that time because of the damage it would do to Seneca lands, including Pennsylvania Congressman
John P. Saylor of
Johnstown, and
Howard Zahniser, executive director of
The Wilderness Society and native of
Tionesta – a small town located on the Allegheny River several miles downstream from Warren. During the campaign for the
1960 United States presidential election,
John F. Kennedy assured the Seneca Nation that he would oppose the dam if elected. However, he failed to follow through on his pledge upon becoming president.
In 1992, of the Allegheny was designated
Wild and Scenic. This designation comprises three segments of the river located in
Warren,
Forest, and
Venango Counties.
In 2008,
Katie Spotz became the first person to swim the entire of the Allegheny River; she was accompanied by safety kayaker, James Hendershott.
The team began at the river's source in Raymond, Pennsylvania on July 22 and finished at the "Point" in Downtown Pittsburgh on August 21.
Cities and towns along the river
New York
Pennsylvania

The Allegheny River at
Foxburg, Pennsylvania
See also
Notes and references