The Échez (; ) is a left tributary of the Adour, in the Hautes-Pyrénées, in the Southwest of France. It is long.
Geography The Échez rises in Sère-Lanso (east of Lourdes) and flows north along the Adour, which it joins in Maubourguet. It flows through Tarbes and Vic-en-Bigorre.
Main tributaries (R) Aube, (L) Jeune, (R) Gespe, in Tarbes, (L) Souy, (L) Géline, from the plateau of Ger (L) Lis, from Ger.
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