Birth: In the zone of The Filabres.
River mouth: Mediterranean sea.
Villages where it passes: It passes through Fiñana, Abrucena, Abla, Las Tres Villas, Nacimiento, Gérgal, Santa Cruz, Alsodux and Alboloduy.
Curiosities: The Birth river was known as Alboloduy river up to the second half of the 18th century.