Juniata River

Juniata River
Juniata River in Riddlesburg, PA
Country	United States
State	Pennsylvania
Counties	Perry, Juniata, Mifflin, Huntingdon, Bedford, Somerset
Tributaries
- left	Standing Stone Creek, Kishacoquillas Creek
- right	Raystown Branch, Aughwick Creek, Tuscarora Creek
Cities	Duncannon, Newport, Thompsontown, Port Royal, Mifflintown, Lewistown, Mount Union, Huntingdon
Source	Frankstown Branch
Secondary source	Little Juniata River
Source confluence
- location	Petersburg, Pennsylvania, US
- elevation	660 ft (201 m)
- coordinates	40°33′39″N 78°04′06″W / 40.56083°N 78.06833°W / 40.56083; -78.06833
Mouth	Susquehanna River
- location	Duncannon, Perry County, Dauphin County, Pennsylvania, US
- elevation	330 ft (101 m)
- coordinates	40°24′05″N 77°00′48″W / 40.40139°N 77.01333°W / 40.40139; -77.01333Coordinates: 40°24′05″N 77°00′48″W / 40.40139°N 77.01333°W / 40.40139; -77.01333
Length	104 mi (167 km)
Basin	3,400 sq mi (8,806 km2)
Discharge	for Newport
- average	4,476 cu ft/s (127 m3/s)
- max	209,000 cu ft/s (5,918 m3/s)
- min	636 cu ft/s (18 m3/s)
Discharge elsewhere (average)
- Mapleton Depot	2,724 cu ft/s (77 m3/s)
Juniata River watershed and tributaries

The Juniata River is a tributary of the Susquehanna River, approximately 104 miles (167 km) 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 3,400 square miles (8,800 km²), 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.

The Juniata River forms in western Huntingdon County at the confluence of the Frankstown Branch and the Little Juniata River, between the boroughs of Alexandria and Petersburg. The river flows southeast through Huntingdon and continues to the small village of Ardenheim, where the Raystown Branch, the longest of the Juniata's tributaries, enters from the southwest. The Juniata continues southeast, through a gap in the Jacks Mountain ridge. On the southeast side of the ridge it receives Aughwick Creek from the south, then flows northeast, along the eastern flank of the Jacks Mountain ridge to Lewistown, where it collects Kishacoquillas Creek and Jacks Creek. From Lewistown it flows southeast, in a winding course, receiving Tuscarora Creek from the south and passing through a gap in the Tuscarora Mountain ridge. The Juniata River is joined by three creeks in Millerstown in northeast Perry County. It receives Cocolamus Creek .7 miles (1.1 km) southeast, Raccoon Creek .5 miles (0.80 km) southeast, and Wildcat Run Creek 2.8 miles (4.5 km) southeast of Millerstown. It receives Buffalo Creek .9 miles (1.4 km) northwest of Newport and joins the Susquehanna just east of Duncannon, approximately 15 miles (24 km) northwest of Harrisburg.