The Tiber (Latin: Tiberis, Italian: Tevere) is the third-longest river in Italy, rising in the Apennine Mountains in Emilia-Romagna and flowing mainly through Umbria and Lazio to the Tyrrhenian Sea, between Ostia and Fiumicino.
The Tiber in Rome
|Regions||Emilia-Romagna, Tuscany, Umbria, Lazio|
|Provinces||Forlì-Cesena, Arezzo, Perugia, Terni, Viterbo, Rieti, Roma|
|Comuni||Pieve Santo Stefano, Sansepolcro, Città di Castello, Umbertide, Orte, Rome|
|- left||Chiascio, Nera, Aniene|
|- right||Nestore, Paglia|
|- location||Forlì-Cesena, Emilia-Romagna, Italy|
|- elevation||1,268 m (4,160 ft)|
|- location||Ostia, Lazio, Italy|
|- elevation||0 m (0 ft)|
|Length||405 km (252 mi)|
|Basin||17,375 km² (6,709 sq mi)|
|- average||231 m³/s (8,158 cu ft/s)|
|Wikimedia Commons: Tiber|
|River||Length (km)||Watershed (km²)|
The Tiber starts near the town of Balze, Verghereto comune in the southwestern end of the Forlì-Cesena province, in the southern side of Monte Fumaiolo. The source of the river is formed by two springs that are 10 m (33 ft) from each other in a forest on the mountain at an elevation of 1,268 m (4,160 ft) above sea level.
The Tiber flows through Emilia-Romagna about 4 kilometres (2.5 miles) and then it gets into Tuscany where flows through Pieve Santo Stefano and Sansepolcro. Between these two localities there is a dam with a large reservoir that is named as Montedoglio Lake (Italian: Lago di Montedoglio). From here, the river flows through a wide plain (Val Tiberina) and gets in the Perugia province (Umbria) and flows through the towns of Città di Castello and Umbertide.
To the south of Torgiano, it is joined by its left side by the Chiascio river and then, in the Marsciano dam, by the Nestore river by its right side. Soon another right tributary, the Paglia, joins the Tiber.
The river forms the border between the Umbria (province of Terni) and Lazio (province of Viterbo) regions. Near the city of Orte, it is joined by the left side by its main tributary, the Nera river.
It flows through the Lazio region (Viterbo, Rieti and Rome provinces) and is joined by the Aniene river, flows through the city of Rome and, finally, into the Tyrrhenian Sea between Ostia and Fiumicino.
The main tributaries are:
|Chiascio||82 km||19 m³/s|
|Nera||116 km||168 m³/s|
|Aniene||99 km||35 m³/s|
|Nestore||64 km||11 m³/s|
|Paglia||86 km||11 m³/s|
View of the Tiber looking towards the Vatican City.