The Gers (Occitan: Gers) is a 178 km long river in southern France, left tributary of the Garonne.
Its source is in the foothills of the Pyrenees, near Lannemezan. It flows north through the départements Hautes-Pyrénées, Gers and Lot-et-Garonne. It flows into the Garonne near Agen. The city Auch lies along the river Gers. It gives its name to the Gers département.
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Length:
- 178 km (111 mi )