The Echez river flows only in the Hautes-Pyrenees department; it flows through the cities and towns Les Angles, Arcizac-ez-Angles, Escoubes-Pouts, Orincles, Barry, Benac, Louey, Juillan, Tarbes, Borderes-sur-l'Echez, Oursbelille, Bazet, Andrest Vic-en-Bigorre, Nouilhan, Maubourguet.
