Gère

Gère
The Gère in Vienne
Location
CountryFrance
RegionAuvergne-Rhône-Alpes
DepartmentIsère
Towns
Physical characteristics
SourceEastern part of the Bonnevaux forest, étang de la Grande Tuilière
  locationChâtonnay
  coordinates45°27′45″N 5°13′12″E / 45.4624°N 5.2201°E / 45.4624; 5.2201
  elevation549 m
MouthRhône
  location
Vienne
  coordinates
45°31′40″N 4°52′24″E / 45.5279°N 4.8734°E / 45.5279; 4.8734
  elevation
152 m
Length34.5 km (21.4 mi)
Discharge 
  average3.15 cubic metres per second (111 cu ft/s)
Basin features
ProgressionRhôneMediterranean Sea

The Gère (French pronunciation: [ʒɛʁ]) is a 34.5-kilometre-long (21.4 mi) tributary of the Rhône in the Isère department of Auvergne-Rhône-Alpes (France). Its source is in a pond of the Grand Tuilière in the eastern part of the Bonnevaux forest. It flows into the Rhone at Vienne. Its power was put to work for paper mills, foundries, and textile mills in the Gère Valley at the beginning of the industrial era.