Semnon | |
---|---|
Location | |
Country | France |
Physical characteristics | |
Source | |
• location | Congrier |
• coordinates | 47°47′30″N 01°08′34″W / 47.79167°N 1.14278°W |
• elevation | 90 m (300 ft) |
Mouth | |
• location | Vilaine |
• coordinates | 47°53′59″N 01°45′25″W / 47.89972°N 1.75694°W |
• elevation | 7 m (23 ft) |
Length | 73.3 km (45.5 mi) |
Basin size | 400 km2 (150 sq mi) |
Discharge | |
• average | 2.8 m3/s (99 cu ft/s) |
Basin features | |
Progression | Vilaine→ Atlantic Ocean |
The Semnon (French pronunciation: [sɛmnɔ̃]; Breton: Sevnon) is a 73.3 km (45.5 mi) long river in the Mayenne, Maine-et-Loire, Ille-et-Vilaine and Loire-Atlantique départements, northwestern France.[1] Its source is in Congrier. It flows generally west-northwest. It is a left tributary of the Vilaine into which it flows between Pléchâtel and Bourg-des-Comptes.
This list is ordered from source to mouth: