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The Beaver River is a tributary of the Ohio River in Western Pennsylvania in the United States with a length of approximately 21 mi (34 km). It flows through a historically important coal-producing region north of Pittsburgh. The Beaver River is formed in Lawrence County by the confluence of the Mahoning and Shenango rivers at a point approximately 3 mi (5 km) southwest of New Castle. It flows generally south, past West Pittsburg and Homewood. It receives Connoquenessing Creek west of Ellwood City and flows past Beaver Falls and New Brighton. It joins the Ohio at Bridgewater and Rochester (flowing between these two towns) at the downstream end of a sharp bend in the Ohio approximately 20 mi (32 km) northwest of (and downstream from) Pittsburgh. In the lower reaches near the Ohio River, the Beaver cuts through a gorge of underlying sandstone. The river is roughly parallel to the border with the state of Ohio, with both Interstate 376 and Pennsylvania Route 18 running parallel to the river itself. The river, which flows throughout the northern half of Beaver County, serves as the namesake of the county as well as several locales in both Beaver and Lawrence County. The river itself was either named for King Beaver of the Delaware tribe that was native to the area, or for the animal itself.〔(【引用サイトリンク】 title=INDIAN NAMES IN BEAVER COUNTY )〕 Until the partition of Lawrence County from parts of Beaver and Mercer County in 1849, the river was entirely located in Beaver County, with its upstream terminus being at the border between Beaver and Mercer County from 1800-1849. ==Communities along the river== *West Pittsburg, Pennsylvania *Wampum, Pennsylvania *Koppel, Pennsylvania *Homewood, Pennsylvania *Beaver Falls, Pennsylvania *Eastvale, Pennsylvania *New Brighton, Pennsylvania *Fallston, Pennsylvania *Rochester, Pennsylvania *Bridgewater, Pennsylvania 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Beaver River (Pennsylvania)」の詳細全文を読む スポンサード リンク
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