What is the Geography of the Ohio River? Key Facts and Overview

Discover the geography of the Ohio River, its course, states it passes through, and its importance for commerce and ecosystems.

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The Ohio River is a significant waterway that extends approximately 981 miles, flowing southwesterly from Western Pennsylvania through several states including Ohio, West Virginia, Kentucky, Indiana, and Illinois, before joining the Mississippi River at Cairo, Illinois. It serves as a critical transportation route and water source for millions, while also supporting a diverse ecosystem. The river's basin is pivotal for both commerce and recreation, making its geography an essential aspect of the surrounding regions.

FAQs & Answers

  1. How long is the Ohio River? The Ohio River extends approximately 981 miles from Western Pennsylvania to its confluence with the Mississippi River in Illinois.
  2. Which states does the Ohio River flow through? The Ohio River flows through Pennsylvania, Ohio, West Virginia, Kentucky, Indiana, and Illinois.
  3. Why is the Ohio River important? The Ohio River is vital as a transportation route, water source, and supports a diverse ecosystem while enabling commerce and recreational activities.
  4. Where does the Ohio River meet the Mississippi River? The Ohio River joins the Mississippi River at Cairo, Illinois.

Watch More

For those interested in river systems and U.S. geography, explore our related content on the Mississippi River and the role of major waterways in American commerce and ecosystems.

  1. What Is the Geography of the Ohio River? Key Facts and States Borders Explained Discover the geography of the Ohio River, its path, bordering states, and its significance for transportation and the region.
  2. Which Direction Does the Ohio River Flow? Complete Guide Discover the flow direction of the Ohio River from Pittsburgh to the Mississippi, and its significance in the U.S.
  3. How Far South Does the Ohio River Flow? Key Facts and Geography Explained Discover how far south the Ohio River flows, from Pittsburgh to Cairo, Illinois, and its role as a natural state border.
  4. Why Is the Ohio River Important for Commerce, Water Supply, and Recreation? Discover why the Ohio River is vital for commerce, drinking water, and recreation, supporting millions and local economies.
  5. What is the Largest River That Flows Through Ohio? | Ohio River Facts Discover the largest river flowing through Ohio—the Ohio River—and learn about its significance, path, and role in the region.
  6. What Makes the Ohio River Unique? Key Facts and Historical Importance Discover the unique features of the Ohio River, its role as a state boundary, key tributary, and historical significance in commerce and exploration.
  7. What Is the Direction of the Ohio River Watershed Flow? Discover how the Ohio River watershed flows southwest from Pennsylvania to Illinois, draining parts of 15 states and feeding the Mississippi River.