Semnon

River in France

Semnon

The Semnon between Pléchâtel and Poligné.

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Location
Country| France
Physical characteristics
Source|
• location| Congrier
• coordinates| 47°47′30″N 01°08′34″W﻿ / ﻿47.79167°N 1.14278°W﻿ / 47.79167; -1.14278
• elevation| 90 m (300 ft)
Mouth|

• location

| Vilaine

• coordinates

| 47°53′59″N 01°45′25″W﻿ / ﻿47.89972°N 1.75694°W﻿ / 47.89972; -1.75694

• 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.

## Départements and communes along its course

[edit]

This list is ordered from source to mouth:

* Mayenne: Congrier, Saint-Erblon, Senonnes
* Maine-et-Loire: Pouancé
* Ille-et-Vilaine: Eancé, Martigné-Ferchaud
* Loire-Atlantique: Fercé
* Ille-et-Vilaine: Thourie
* Loire-Atlantique: Soulvache
* Ille-et-Vilaine: Teillay, Ercé-en-Lamée, Lalleu, Tresbœuf, La Bosse-de-Bretagne, Bain-de-Bretagne, Pancé, Pléchâtel, Poligné, Bourg-des-Comptes

## References

[edit]

1. ^ Sandre. "Fiche cours d'eau - Semnon (J76-0300)".

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