Rivers of Gers

The Adour (; ; ) is a river in southwestern France. It rises in High-Bigorre (Pyrenees), in the commune of Aspin-Aure, and flows into the Atlantic Ocean (Bay of Biscay) near Bayonne. It is long, of which the uppermost ca. is known as the Adour de Payolle. At its final stretch, i.e. on its way through Bayonne and a short extent upstream, the river draws the border between the Northern Basque Country and Landes regions.

river in France

The Baïse (; ) is a long river in south-western France, left tributary of the Garonne. Its source is in the foothills of the Pyrenees, near Lannemezan. It flows north through the following départements and towns: Hautes-Pyrénées: Lannemezan, Trie-sur-Baïse Gers: Mirande, Castéra-Verduzan, Valence-sur-Baïse, Condom Lot-et-Garonne: Nérac, Lavardac

The Gimone (; ) is a river in south-western France, left tributary of the Garonne. Its source is in the foothills of the Pyrenees, near Lannemezan. It flows north through the following départements and towns:

river in France

river in France

The Arrats is a long river in southern France, left tributary of the Garonne. Its source is in the northern foothills of the Pyrenees, near Sariac-Magnoac. It flows north through the following départements and towns: Hautes-Pyrénées Gers: Castelnau-Barbarens, Aubiet, Mauvezin, Saint-Clar Tarn-et-Garonne: Saint-Loup

river in France

The Gélise (; ) is a tributary of the river Baïse in Gascony, southwestern France. It is long.

The Bouès is a right tributary of the Arros, at the eastern end of the basin of the Adour, in the Southwest of France. It is long.

The Gesse (; ) is a long river in the Hautes-Pyrénées, Haute-Garonne and Gers départements, southwestern France. Its source is at Arné, on the plateau de Lannemezan. It flows generally northeast. It is a left tributary of the Save into which it flows at Espaon.

The Auroue () is a long river in the Gers, Lot-et-Garonne and Tarn-et-Garonne départements, south western France. Its source is at Crastes, northeast of Auch. It flows generally north. It is a left tributary of the Garonne into which it flows between Saint-Sixte and Saint-Nicolas-de-la-Balerme, southeast of Agen.

The Douze (; ) is the right source river of the Midouze, in the Landes, in the southwest of France. It is long.

The Midou (; ) or Midour is the left precursor of the Midouze, in the Southwest of France.

river in France

The Auzoue () is a long river in the Gers and Lot-et-Garonne départements, southwestern France. Its source is at Bassoues. It flows generally north. It is a right tributary of the Gélise into which it flows at Mézin.

The Léez (Leez, Lées, Léès, Lees) is a left tributary of the Adour, in the Southwest of France. It is long.

The Arcis or Larcis (with article agglutination; ) is a river in Southwestern France. It is a right tributary of the Léez, originating in the commune Luc-Armau in the east of the Pyrénées-Atlantiques. It joins the Léez in Lannux, in the French département of the Gers. It is long.