The Youghiogheny River, often called The Yough (pronounced Yok), is a 134-mile tributary of the Monongahela River flowing through parts of West Virginia, Maryland, and Pennsylvania. Its name comes from a Lenape word meaning a stream flowing in a contrary direction, as it uniquely flows northward. The river begins near Eglon, West Virginia, travels through Maryland, and enters Pennsylvania between Fayette and Somerset counties before joining the Monongahela River at McKeesport. Once severely impacted by pollution, the Yough has made a remarkable recovery and now supports diverse aquatic life. The river offers outstanding opportunities for trout and smallmouth bass fishing, with coldwater releases from Youghiogheny River Lake maintaining suitable temperatures for trout in upstream sections, while the lower portions support excellent warmwater fisheries.