Allegheny and monongahela rivers meet

Allegheny River - New World Encyclopedia

allegheny and monongahela rivers meet

Title: The Allegheny and Monongahela Rivers form the Ohio River in Pittsburgh, Pennsylvania; Contributor Names: Highsmith, Carol M., , photographer. Add or remove collections. Home arrow Keystone Slides arrow Confluence of the Allegheny and Monongahela Rivers, Pittsburgh, P.A.. Reference URL. Share. Water quality of the large rivers of the Allegheny and Monongahela River Basins is improving.. 10 . generally at concentrations meeting drinking-water.

So it is with the Monongahela River. You'd think that having a river which several West Virginia towns dump their sewage into would be bragging rights enough. It's a cherished belief among Pittsburghers that the Mon is unique -- or at least rare -- in flowing from south to north.

Monongahela River

I've often heard it said that "the Monongahela and the Nile are two of the only rivers in the world that flows north. And many's the balmy summer evening -- the air over Pittsburgh heady with the smell of date palms and the sound of the muezzin calling the faithful to prayer -- that I think it's true. But what's also true, sad to say, is that northward-flowing rivers aren't that rare. According to the National Aeronautics and Space Administration, four of the world's 10 longest rivers flow generally northward: In fact, NASA says that there are rivers flowing north on every continent.

Allegheny and Monongahela Rivers meet to become the Ohio River Stock Photo: - Alamy

Europe, for example, has several north-flowing rivers in one country alone: While the armies of Germany always head toward France, many of its key rivers point north -- the Rhine, the Spree, the Elbe. There are also countless north-flowing rivers in South America, Asia and elsewhere, but be honest: Do you really care? Isn't it bad enough knowing the Germans have some?

allegheny and monongahela rivers meet

Worse yet, even Cleveland can boast of a north-flowing river: The Cuyahoga flows southwest for much of its length, but turns north toward Lake Erie and ends up further north than where it starts. Heck, the Mon isn't even the only north-flowing river in western Pennsylvania: Tributaries Much of the area through which the Allegheny River flows consists of hilly woodlands. There are numerous other creeks, runs, and streams that enter or join with the Allegheny River.

Allegheny and Monongahela Rivers meet to become the Ohio River.

In the sixteenth 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 eighteenth 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 s.

  • The Monongahela River flows from south to north. How many other rivers do?
  • Allegheny and Monongahela Rivers meet to become the Ohio River.
  • Confluence of the Allegheny and Monongahela Rivers, Pittsburgh, P.A.

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 Treaty of Paris, kept the area closed to white settlement, in part to repair and maintain relations with the Native Americans.

Allegheny River - Wikipedia

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 nineteenth 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.

Inthe first U. Lock and Dam No. The Highland Park Bridge crosses the river just above the dam.

allegheny and monongahela rivers meet

Inthe 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 Treaty of Canandaigua, and to lands given to Cornplanter and his descendants.