The Juniata River flows approximately 150 miles through the heart of Pennsylvania, beginning with headwaters in the Allegheny Mountains. Three main tributaries feed into the Juanita: the Little Junaita, Frankstown Branch Juniata, and Raystown Branch Juniata. The Juniata watershed is primarily rural, with about 70% of the land considered forested, 20% used for agriculture, and only 1% considered urban development. Fly fishing and paddling are popular pastimes on the Juniata. (Based on USACE Corps Water Management System.)