Tiber

Tiber, a river of Central Italy, rises in the Apennines, flows S.E. to Perugia, then S. to Rome, and then S..W. by two branches into the Mediterranean. The northern of these branches is navigable, and the delta is called Isola Sacra. In its course of 260 miles, it receives the Nera, Velino, and Aniene on the left, and the Paglia, with Chiama, on the right, and is navigable for small vessels to the junction of the Nera. Owing to the mountain torrents that feed it, the Tiber is liable to inundations.