Tygart River

River in central West Virginia; length 210 km/130 mi. Early in the Civil War, it was the scene of the Tygart Valley Campaign (July 1861), in which Union troops drove Confederate forces south up the valley, winning two battles, at Laurel Hill and Rich Mountain, on the same day.

The Tygart River rises in the Monongahela National Forest and flows mainly north through Elkins, Philippi, and Grafton, where the Tygart River Dam, built in 1938 as a flood-control measure, impounds Tygart Lake. After joining the West Fork at Fairmont it is known as the Monongahela River.