The Ohio River originates at which city, and into which greater body of water does it eventually flow?

The Ohio River has a unique and dramatic beginning right in the heart of a major American city. It isn't born from a single spring or mountain lake, but is instead formed by the confluence of the Allegheny and Monongahela rivers. This meeting point, known locally as "The Point," is a state park in downtown Pittsburgh, Pennsylvania, and is the centerpiece of the city's identity, giving rise to its "Three Rivers" nickname.

From there, the river flows southwest for 981 miles, serving for centuries as a vital artery for transportation, commerce, and westward expansion. French explorers dubbed it "La Belle Rivière," or "The Beautiful River." It also formed a crucial cultural and political boundary, separating free states to its north from slave states to its south for much of the nation's early history.

The Ohio's long journey ends at the small city of Cairo, Illinois, where it empties into the mighty Mississippi River. This isn't just a minor meeting of streams; the Ohio is the Mississippi's largest tributary by volume, contributing more water at their confluence than the Upper Mississippi itself. From this point, the combined waters travel southward, eventually flowing into the Gulf of Mexico.