The Tygart Valley River — also known as the Tygart River — is a principal tributary of the Monongahela River, approximately 135 miles long, in east-central West Virginia in the United States.
Via the Monongahela and Ohio rivers, it is part of the watershed of the Mississippi River, draining an area of 1,329 square miles in the Allegheny Mountains and the unglaciated portion of the
Allegheny Plateau.
The Tygart Valley River rises in the Allegheny Mountains in Pocahontas County and flows generally north-northwestwardly through Randolph, Barbour, Taylor and Marion counties, past the towns of
Huttonsville, Mill Creek, Beverly, Elkins, Junior, Belington, Philippi, Arden, and Grafton, to Fairmont, where it joins the West Fork River to form the Monongahela River.
(The Tygart is thus the "East Fork" of the Monongahela.) Downstream of Elkins, the Tygart passes through a gap between Rich Mountain and Laurel Mountain, which are considered to be part of
the westernmost ridge of the Allegheny Mountains and the boundary between the Alleghenies and the Allegheny Plateau.
Roaring Creek
Status: Active
Year: 2012
Pollutants: Metals, pH
Total Costs: $600,000
Sandy Creek
Status: Active
Year: 2012
Pollutants: Metals, pH
Total Costs: $500,000
Three Forks Creek
Status: Not Active
Year: 2005
Pollutants: Metals, pH
Total Costs: $14.9 Million
Upper Buckhannon
Status: Active
Year: 2006
Pollutants: Metals, pH
Total Costs: $2.1 Million