Couzon (Gier)

Couzon
Couzon valley from the D30 between Rive-de-Gier and Sainte-Croix-en-Jarez, above the dam (November 2008)
Location
CountryFrance
LocationAuvergne-Rhône-Alpes
Physical characteristics
Source 
  locationMont Pilat
Mouth 
  location
Rive-de-Gier
  coordinates
45°31′51″N 4°37′33″E / 45.5309°N 4.6259°E / 45.5309; 4.6259
Length12.7 km (7.9 mi)
Basin size34 km2 (13 sq mi)
Basin features
ProgressionGierRhôneMediterranean Sea

The Couzon is a river in the Loire department of France, a tributary of the Gier, which in turn is a tributary of the Rhône. A dam on the river, built to serve as a reservoir for the Givors canal, now provides drinking water to the town of Rive-de-Gier.