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The Ohio River is a 981-mile (1,579 km) long 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 is 981 miles long, starting at the confluence of the Allegheny and the Monongahela Rivers in Pittsburgh, Pennsylvania, and ending in Cairo, Illinois, where it flows into the Mississippi River. The Ohio River flows through or borders six states: Illinois, Indiana, Kentucky, Ohio, Pennsylvania and West Virginia.
Dec 13, 2023 · Map of Ohio River Valley (within broader map of Eastern United States). Library of Congress, Geography and Map Division. Quick Facts. Location: Virginia Point Park. Significance: Meriwether Lewis traveled this stretch of the Ohio River on his journey west in 1803. Designation: Lewis and Clark National Historic Trail. MANAGED BY:
