The Juniata River (/ˈdʒuːniˌɑːtə/) is a tributary of the Susquehanna River, approximately 104 miles (167 km) long, in central Pennsylvania. The river is considered scenic along much of its route, having a broad and shallow course passing through several mountain ridges and steeply lined water gaps. It formed an early 18th-century frontier region in Pennsylvania and was the site of French-allied Native American attacks against English colonial settlements during the French and Indian War.