Tuscarora Mountain is a mountain ridge of the Appalachian Mountains in the Ridge and Valley province in central Pennsylvania. It reaches its highest point on Big Mountain (Pennsylvania) at 2,458 feet (749 m) above sea level.
The mountain runs from northeast to southwest, extending from the Juniata River at Millerstown in the north to the end of Cove Mountain at Cowans Gap in the south. Part of it forms the border between Fulton and Franklin counties.
Geologically, the mountain is held up by the Tuscarora Formation.