The Potomac River is a major river in the eastern United States, flowing approximately 383 miles from its source in the Allegheny Mountains of West Virginia to its mouth at the Chesapeake Bay. It serves as a natural boundary between Maryland and Virginia and passes through the nation's capital, Washington, D.C., making it historically significant. The river is known for its scenic beauty and recreational opportunities, including fishing, boating, and hiking along its banks. It is also home to various wildlife species and plays a crucial role in the local ecosystem, supporting both aquatic and terrestrial habitats.