This article is about the river in Virginia in the United States. For other uses, see Shenandoah River (disambiguation)
The Shenandoah River is a tributary of the Potomac River, approximately 150 mi (241 km) long, in the U.S. states of Virginia and West Virginia. The principal tributary of the Potomac, the river and its tributaries drain a several lateral valleys in the Appalachians on the west side of the Blue Ridge Mountains, mostly in northwestern Virginia.
It is formed near Front Royal by the confluence of South Fork (the longer branch) and North Fork. It flows northeast across Warren and Clarke counties, then into West Virginia, crossing the extreme eastern tip of the state. It joins the Potomac from the south near Harpers Ferry, West Virginia.