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

[1] The Bouès rises near Capvern, west of Lannemezan where it is fed by the Neste Canal.

It flows north through a narrow valley and joins the Arros, downstream from Marciac, in a historical region known as Rivière-Basse.

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