The Ohio River is a 981-mile-long (1,579 km) river in the United States. It is located at the boundary of the Midwestern and Southern United States, flowing in a southwesterly direction from western Pennsylvania to its mouth on the Mississippi River at the southern tip of Illinois.

The Ohio River starts at the confluence of the Allegheny & Monongahela Rivers in Pittsburgh, Pennsylvania, and ends in Cairo, Illinois, where it flows into the Mississippi River. The Ohio River is located at the boundary of the Midwestern and …

2023年7月29日 · On a U.S. map, the Ohio River can be traced from its source in Pittsburgh, Pennsylvania, and followed as it meanders through several states. Starting in the eastern part of the country, the river flows southwest, forming natural borders between states such as Ohio and West Virginia, Ohio and Kentucky, and Indiana and Kentucky.

2025年1月6日 · Ohio River, major river artery of the east-central United States. Formed by the confluence of the Allegheny and Monongahela rivers at Pittsburgh, it flows northwest out of Pennsylvania, then in a general southwesterly direction to join the Mississippi River at Cairo, Illinois (see photograph),

The Ohio River is the source of drinking water for more than five million people. More than 25 million people, almost 10% of the US population, live in the Ohio River Basin. There are 20 dams on the Ohio River, managed by the Army Corps of Engineers.

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.

2021年7月19日 · The two sources of the Ohio River are the Allegheny River and the Monongahela River. The Allegheny River rises in north-central Pennsylvania in the Allegheny Township at an elevation of 680m. The Monongahela River begins in the city of Fairmont in the State of West Virginia at an elevation of 270m.

2019年12月30日 · Beginning at Pittsburgh, Pennsylvania, the Ohio is formed by the confluence of the Allegheny and Monongahela Rivers. It ends 981 miles later at Cairo, Illinois when it empties into the Mississippi. The average depth is 24 feet, with the deepest section of 130 feet near Louisville, Kentucky.

The Ohio River is the source of drinking water for more than five million people. The Ohio River is part of the Mississippi River watershed, which is the third largest in the world, covering about 1,245,000 square miles.

The Ohio discharges 180 billion gallons of water each day into the Mississippi River. The Ohio is the only basin in Pennsylvania that drains into the Gulf of Mexico, which results in a distinct difference in the aquatic life that is present.