Search results
Results From The WOW.Com Content Network
Subregion Location [4] Subregion Size [4] Subregion Map 0501 Allegheny Subregion Subregion: The Allegheny River Basin. Pennsylvania and New York. 11,600 sq mi (30,000 km 2) HUC0501: 0502 Monongahela Subregion Subregion: The Monongahela River Basin. Maryland, Pennsylvania, and West Virginia. 7,310 sq mi (18,900 km 2) HUC0502: 0503 Upper Ohio ...
The Ohio River at Cairo is 281,500 cu ft/s (7,960 m 3 /s); [1] and the Mississippi River at Thebes, Illinois, which is upstream of the confluence, is 208,200 cu ft/s (5,897 m 3 /s). [66] The Ohio River flow is greater than that of the Mississippi River, so hydrologically the Ohio River is the main stream of the river system.
Downstream of Youngstown, Ohio through Struthers and Lowellville in Ohio and Edinburg in Pennsylvania, the river runs through a significant valley. In contrast and notwithstanding some shallow reservoirs and short waterfalls, the river upstream of there flowing through Newton Falls and Warren encounters less relief in the ground and the terrain is largely flat right up to the riverbank.
The three main tributaries are Mosquito Creek, West Branch, and Eagle Creek, all in Ohio. There are 15 dams on the river course. The river has a course of 97.1 miles (156.3 km) in Ohio, with the remainder in Pennsylvania. The river supports more than 72 species of fish and 15 species of freshwater mussels.
Beaver River is a tributary of the Ohio River in Western Pennsylvania. Approximately 21 mi (34 km) long, it flows through a historically important coal-producing region north of Pittsburgh. The river is formed in Lawrence County by the confluence of the Mahoning and Shenango rivers in the Mahoningtown neighborhood of New Castle. [4]
The Allegheny River (/ ˌ æ l ɪ ˈ ɡ eɪ n i / AL-ig-AY-nee) is a 325-mile-long (523 km) tributary of the Ohio River that is located in western Pennsylvania and New York in the United States.
The Ohio River roughly bisects the Unglaciated Allegheny Plateau in generally a north-northeast to south-southwest direction. Other significant rivers in the plateau include the Muskingum River and Tuscarawas River in Ohio, the Youghiogheny River and Allegheny River in Pennsylvania, and the Monongahela River and Kanawha River in West Virginia.
The rivers in the northern part of the state drain into the northern Atlantic Ocean via Lake Erie and the St. Lawrence River, and the rivers in the southern part of the state drain into the Gulf of Mexico via the Ohio River and then the Mississippi. The worst weather disaster in Ohio history occurred along the Great Miami River in 1913. Known ...