1. Where Does the Ohio River Start and End: Facts about the Ohio River

    https://mywaterearth.com/where-is-the-ohio-river-facts-about-the-ohio-river/

    Where does the Ohio River start and end? The Ohio River begins at the confluence of the Allegheny and Monongahela Rivers in Pittsburgh, Pennsylvania, and flows southwest for about 981 miles before emptying into the Mississippi River near Cairo, Illinois. What states does the Ohio River run through?

  2. Ohio River | Geography, History & Importance | Britannica

    https://www.britannica.com/place/Ohio-River

    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),

  3. Quick Facts | The Ohio River | Ohio River ... - Ohio River Foundation

    https://ohioriverfdn.org/ohio-river/quick-facts/

    Learn about the Ohio River, its length, states, dams, watershed, and impact on wildlife and people. Find out how to donate and get involved in river conservation and education.

  4. The Ohio River - U.S. National Park Service

    https://www.nps.gov/articles/the-ohio-river.htm

    Learn about the Ohio River, a major North American river that is part of the Lewis and Clark National Historic Trail. Discover its origin, name, significance, and commercial use from the 18th to the 20th century.

  5. Ohio River - WorldAtlas

    https://www.worldatlas.com/rivers/ohio-river.html

    Learn about the Ohio River, a 1,579km long river in the east-central United States that flows into the Mississippi River. Discover its sources, tributaries, dams, climate, wildlife, pollution, and historical significance.

  6. History of the Ohio River

    http://www.water.ohiorivertrail.org/index.php/en/history-of-the-ohio-river

    Learn about the formation, significance, and ecology of the Ohio River, which flows through six states and connects the Mississippi River. Discover the wildlife, recreation, and conservation efforts along the river and its islands.

  7. Ohio River - New World Encyclopedia

    https://www.newworldencyclopedia.org/entry/Ohio_River

    The Ohio River is the largest tributary by volume of the Mississippi River. It is approximately 981 miles (1,579 km) long and is located in the eastern United States.

  8. Ohio River: A Historical & Ecological Marvel - Ocean Info

    https://oceaninfo.com/rivers/ohio-river/

    Learn about the Ohio River, a historical and ecological marvel that flows through six states and supports millions of people and wildlife. Discover its geography, sources, threats, and conservation efforts.

  9. Ohio River Wildlife, Size, Activities, and More - A-Z Animals

    https://a-z-animals.com/blog/ohio-river-wildlife-size-activities-and-more/

    It is difficult to overstate the importance of the Ohio River in the history, expansion, culture, and economy of the United States. The river flows through six states. Over 25 million people live in the Ohio River Basin. The river impacts their lives directly and indirectly.