Where Does the Ohio River Begin and End? Key Facts About Its Source and Mouth

Discover where the Ohio River starts and ends, its length, and its importance for commerce and transportation in the U.S.

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The Ohio River begins at the confluence of the Allegheny and Monongahela rivers in Pittsburgh, Pennsylvania, and ends at the Mississippi River in Cairo, Illinois. This major waterway spans 981 miles and serves as a critical conduit for commerce and transportation in the eastern United States.

FAQs & Answers

  1. What two rivers form the Ohio River? The Ohio River is formed by the confluence of the Allegheny and Monongahela rivers in Pittsburgh, Pennsylvania.
  2. How long is the Ohio River? The Ohio River spans approximately 981 miles from its beginning to its end.
  3. Where does the Ohio River end? The Ohio River ends at its confluence with the Mississippi River in Cairo, Illinois.
  4. Why is the Ohio River important for commerce? The Ohio River serves as a critical waterway for commerce and transportation in the eastern United States, facilitating trade and movement of goods.

Watch More

For more insights into major U.S. rivers and their roles in geography and commerce, explore our related videos on the Mississippi River, the Colorado River, and key American waterways shaping transportation.

  1. Where Does the Ohio River Start and End? Key Facts Explained Discover where the Ohio River starts and ends, including its path, length, and importance for commerce and transportation.
  2. Which States Receive Water from the Ohio River? Discover how the Ohio River supplies water to over 5 million people across six states for drinking, agriculture, and industry.
  3. Which Two Major Cities Are Connected by the Ohio River? Discover how Cincinnati, Ohio and Louisville, Kentucky are connected by the Ohio River, a vital waterway for commerce and transportation.