What is "leitzaran"

The Leitzaran (, or Leizarán in Spanish) is a river and a valley in the Navarre and the Basque Country ( Spain). It flows into the river Oria from its right.

Its source is in the Leitza municipality in Navarre, and it is long. It enters into Gipuzkoa in a place called Urto. It takes water from the municipalities of Areso, Berastegi, Elduain, Villabona, Urnieta and Andoain and has an area of , of which belongs to Gipuzkoa.