Le Valira del Nord river is also called "Valira de la Massana", "Valira de Ordino" or "ribera de Ordino". It starts in the "Estanys de Tristaina", a group of 3 lakes in northwestern Andorra, in the Ordino parish at an altitude of above sea level. From here, the river flows to the centre of the country, flowing through the villages El Serrat, Les Salines, Llorts, Arans, La Cortinada, Ansalonga, Ordino, La Massana, Anyós and Engordany (part of Escaldes-Engordany). Its main tributaries are the "Sorteny" and "Arinsal" rivers.