| Rance | |
|---|---|
 The Rance in Dinan | |
 | |
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| Native name | |
| Location | |
| Country | France |
| Physical characteristics | |
| Source | |
| • location | Brittany |
| Mouth | |
| • location | English Channel |
| • coordinates | 48°38′28″N 2°2′26″W / 48.64111°N 2.04056°W / 48.64111; -2.04056 |
| Length | 104 km (65 mi) |
| Basin size | 1,195 km (461 sq mi) |
| Discharge | |
| • average | 12 m/s (420 cu ft/s) |
The Rance (French pronunciation: [ʁɑ̃s] ; Breton: Renk, [ˈrẽŋk]) is a river of northwestern France. It is 103.6 km (64.4 mi) long. The semi-tidal river flows into the English Channel between Dinard and Saint-Malo.
Before reaching the Channel, its waters are barred by a 750 metre long dam forming the Rance tidal power plant.
The river is linked to the Vilaine by means of the Canal d'Ille-et-Rance.
Départements and towns along the river:
Hydrology and water quality
Tributaries of the Rance include:
- Croqueloir
- Clergé
- Fremeur
- Quinéford
This river has moderate turbidity and its brownish water is somewhat low in velocity due to the slight gradient of the watercourse; pH levels have been measured at 8.13 within the city of Dinan and electrical conductivity of the waters have tested at 33 micro-siemens per centimetre. At this reference location, summer flows are typically in the range of 14 cubic metres per second (500 cu ft/s).
References
- Sandre. "Fiche cours d'eau - La Rance (J0--0160)".
- Hogan, C. Michael, Water quality of freshwater bodies in France, Lumina Press, Aberdeen, Scotland(2006)
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