Vire
Vire at Pont-Farcy
Native name	La Vire (French)
Location
Country	France
Physical characteristics
Source
• location	Normandy
• elevation	300 m (980 ft)
Mouth
• location	English Channel
• coordinates	49°21′24″N 1°7′13″W / 49.35667°N 1.12028°W / 49.35667; -1.12028
Length	128 km (80 mi)
Basin size	1,240 km2 (480 sq mi)

The Vire (French pronunciation: [viʁ] ^ⓘ) is a river in Normandy, France whose 128 km (80 mi) course crosses the départements of Calvados and Manche, flowing through the towns of Vire, Saint-Lô and Isigny-sur-Mer,^[1] finally flowing out into the English Channel. Its main tributaries are the Aure, the Elle and the Souleuvre.

The outflow of the Vire has been canalized and forms the port of Isigny-sur-Mer.

The poets of the Vire valley (Vau de Vire) are said to have given rise to vaudeville.^[2]

Places along the river:

• Calvados (14) : Vire, Pont-Farcy, Isigny-sur-Mer
• Manche (50) : Tessy-sur-Vire, Troisgots, Torigni-sur-Vire, Condé-sur-Vire, Sainte-Suzanne-sur-Vire, Saint-Lô, Rampan, Pont-Hébert, La Meauffe, Cavigny

Hydrology and water quality

The generally brownish waters of the Vire are moderately alkaline having been tested by Lumina Tech as pH 8.31.^[3] The river waters are relatively turbid, with a Secchi disc measurement of 12 centimetres.^{[citation needed]}

Historical significance

At the turn of the 10th century, the territorial lands of the Kingdom of Brittany had been expanded up to the Vire by their king Alan I.