The
Juniata River is a
tributary of the
Susquehanna River, approximately long, in central
Pennsylvania in the
United States. 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
Native American attacks against white settlements during the
French and Indian War. The watershed of the river encompasses an area of approximately , approximately one-eighth of the drainage area of the Susquehanna. Approximately two-thirds of the watershed is
forested. It is the second largest tributary of the Susquehanna after the
West Branch Susquehanna.