Chestnut Ridge is the westernmost ridge in the Appalachian Mountains. It is located primarily within the Laurel Highlands region of southwestern Pennsylvania.
Chestnut Ridge rises in southern Indiana County and continues south-west-southwardly for 75 miles. The ridge crosses into West Virginia then gradually slopes down and finally ends 10 miles (16 km) southeast of Morgantown, West Virginia.
The ridge passes near the cities of:Blairsville, Derry, Latrobe, Mt. Pleasant, Connellsville, and Uniontown in Pennsylvania; and Morgantown in West Virginia.
Coordinates: 40°14′00″N 79°21′59″W / 40.23333°N 79.36639°W