|Counties||Dauphin, Perry, Juniata, Mifflin, Huntingdon, Bedford, Somerset|
|Cities||Duncannon, Newport, Millerstown, Thompsontown, Port Royal, Mifflintown, Lewistown, Mount Union, Huntingdon|
|• location||Blair County, Pennsylvania, US|
|2nd source||Little Juniata River|
|• location||Pennsylvania, US|
|• location||Petersburg, Pennsylvania, US|
|• elevation||660 ft (200 m)|
|Duncannon, Perry County, Dauphin County, Pennsylvania, US|
|330 ft (100 m)|
|Length||104 mi (167 km)|
|Basin size||3,400 sq mi (8,800 km2)|
|• average||4,476 cu ft/s (126.7 m3/s)|
|• minimum||636 cu ft/s (18.0 m3/s)|
|• maximum||209,000 cu ft/s (5,900 m3/s)|
|• location||Mapleton Depot|
|• average||2,724 cu ft/s (77.1 m3/s)|
|• left||Standing Stone Creek, Kishacoquillas Creek|
|• right||Raystown Branch, Aughwick Creek, Tuscarora Creek|
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 2.8 miles (4.5 km) southeast of Millerstown. The river also receives Buffalo Creek .9 miles (1.4 km) northwest of Newport. The Juniata River joins the Susquehanna River in Reed Township, Dauphin County immediately northwest of the Clarks Ferry Bridge. This is northeast of Duncannon and approximately 15 miles (24 km) northwest of Harrisburg.
The word "Juniata" is thought to be a corruption of the Iroquoian word Onayutta, meaning "Standing Stone". There was a large standing stone where the town of Huntingdon now stands. It was reportedly 14.5 feet (4.4 m) tall and contained carvings recording the history of the local Juniata Tribe. It disappeared in 1754, when the tribe left; tradition says they took it with them. A second stone was raised by the new settlers but destroyed in 1897. A two-foot (0.6 m) fragment of the second stone sits in Juniata College's museum.
The first known inhabitants of the river valley were the Onojutta-Haga Indians. The valley was later inhabited by the Lenape until a treaty negotiated by William Penn opened the land to east of the Allegheny Ridge to white settlement. In 1755–1756, as a result of Lenape anger over loss of their lands, the white settlement in the valley suffered fierce raids and abductions from Lenape and Shawnee at Kittanning on the Allegheny River. Over 3,000 white settlers were killed in the raids. The burning of Fort Granville at present-day Lewistown in 1756 prompted Pennsylvania governor John Penn to launch a reprisal against the Lenape and Shawnee led by Lt. Col. John Armstrong, who burned Kittanning in September 1756.
During the 19th century, the river was paralleled by the Juniata Division Canal, part of the canal system of Pennsylvania and a rival to the Erie Canal. The state sold the canal to the Pennsylvania Railroad, which abandoned the canal in 1889 after severe flooding. Parts of the original locks from the canal, as well as remnants of a dam approximately 1 mile (2 km) south of Millerstown, are still visible today.
The river is a popular destination for recreational canoeing and fly fishing, in particular for smallmouth bass and channel catfish suited to the river's gentle course. The muskellunge was introduced as predatory sport fish and is now a prized catch. Attempts are underway by the state to reintroduce the once-prevalent American shad, which went into decline largely because of dams on the river. Walleye is another game fish prevalent in the Juniata River.
The National Book Award and Pulitzer prize-winning poet Galway Kinnell wrote of the river in a section of The Book of Nightmares (1971), entitled "Dear Stranger, Extant in Memory by the Blue Juniata" ("The Blue Juniata" was a well-known 19th-century parlor song).
The river cuts through several southwest-to-northeast ridges, largely of sandstone between limestone valley floors. Several of the river's tributaries, including Kishacoquillas Creek, are degraded by pollution, but the main stem of the river is considered fairly clean by regional standards. The only city in the watershed with ten thousand or more residents is Altoona. Steep slopes along much of the river's course have largely discouraged widespread development.
- U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map Archived 2012-03-29 at the Wayback Machine, accessed August 8, 2011
- U.S. Geological Survey Geographic Names Information System: Juniata River
- Kaylor, 103
- Kaylor, Earl C. 1996. Martin Grove Brumbaugh: A Pennsylvanian's Odyssey from Sainted Schoolman to Bedeviled World War I Governor, 1862–1930. Fairleigh Dickinson University Press.
- McIlnay, Dennis P. 2003. Juniata, river of sorrows: One Man's Journey Into a River's Tragic Past. Seven Oaks Press.