Yonne | |
---|---|
Location | |
Country | France |
Physical characteristics | |
Source | |
- location | Morvan |
- elevation | 730 m (2,400 ft) |
Mouth | |
- location | Seine |
- coordinates | 48°23′15″N 2°57′30″E / 48.38750°N 2.95833°E |
Length | 292 km (181 mi) |
Basin size | 10,887 km2 (4,203 sq mi) |
Discharge | |
- average | 95 m3/s (3,400 cu ft/s) |
Basin features | |
Progression | Seine→ English Channel |
The Yonne is a river in the northern half of France. It flows mainly through the western part of the Bourgogne-Franche-Comté region, giving its name to the Yonne department and to several communes. It is the main left tributary of the Seine river.
The river was named during the Roman Empire as Icauna, a Latin word that likely came from the Celtic name for the river.[1]
The Yonne river has a length of 292.3 km (181.6 mi) and a drainage basin with an area of 10,836 km2 (4,184 sq mi).[2]
Its average yearly discharge (volume of water which passes through a section of the river per unit of time) is 91.70 cubic metres per second at Courlon-sur-Yonne.[3]
The source of the Yonne is on the Prénely mountain on the southern end of the Morvan hills in the Glux-en-Glenne commune, Nièvre department, at an altitude of about 738 m (2,421 ft).[4]
The Yonne flows, in general, from the southeast to the northwest and passes through the 115 communes, most of them in the Bourgogne-Franche-Comté region; the main communes are:[2]
Finally, it flows, as a left tributary, into the Seine river in the town of Montereau-Fault-Yonne, at 47 m (154 ft) of altitude.[5]
The main tributaries of the Yonne are: