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

Name This name proceeds from an Aquitanian hydronym Lez / Liz.

Geography The Léez rises near Gardères in the north of the plateau of Ger. It flows north through the Vic-Bilh area in the east of the Pyrénées-Atlantiques and joins the Adour in the French département of the Gers, upstream from Aire-sur-l'Adour.

Main tributaries (L) the Petit-Léez, (L) the Gabassot, (R) the Larcis, (R) the canal of Bernède, long of 2 km, fed by the Adour.

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