The Chanza River (Chança in Portuguese) is a river on the Iberian Peninsula. The river arises in the Aracena Mountains in Spain and later forms part of the Portugal–Spain border. The river can be crossed by using the Lower Guadiana International bridge. See also List of rivers of Portugal List of rivers of Spain Rivers of Spain Rivers of Andalusia Rivers of Portugal International rivers of Europe Portugal–Spain border Tributaries of the Guadiana River