French Basque Country
The French Basque Country, or Northern Basque Country ( eu, Iparralde (), french: Pays basque, es, País Vasco francés) is a region lying on the west of the French department of the Pyrénées-Atlantiques. Since 1 January 2017, it constitu ...
(
Pyrénées-Atlantiques
Pyrénées-Atlantiques (; Gascon Occitan: ''Pirenèus Atlantics''; eu, Pirinio Atlantiarrak or ) is a department in the southwest corner of France and of the region of Nouvelle-Aquitaine. Named after the Pyrenees mountain range and the Atlant ...
), in the Southwest of
France
France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of overseas regions and territories in the Americas and the Atlantic, Pacific and Indian Oceans. Its metropolitan area ...
, that flows through the Holtzarte Canyon. It is long.
After joining the
Zurkaitzegiko erreka
The Zurkaitzegiko erreka is a torrential river of the French Basque Country (Pyrénées-Atlantiques), in the Southwest of France, that flows below the village of Larrau.
After joining the Olhadoko erreka, from the Holtzarte Canyon, it forms th ...
Gave de Larrau
The Gave de Larrau is a torrential river of the French Basque Country (Pyrénées-Atlantiques), in the southwest of France. It is the left tributary of the river Saison, and considered its upper course by Sandre. Its name is due to the village of ...
(the upper course of the
Saison
Saison (French, "season," ) is a pale ale that is highly carbonated, fruity, spicy, and often bottle conditioned. It was historically brewed with low alcohol levels, but modern productions of the style have moderate to high levels of alcohol. ...
).
The Olhadoko erreka is formed at the Olhadoko Dam, from the:
* ''Bagosudurreko erreka'', from ''Sakhondoa'',
* ''Zitziratzeko erreka'', from ''Üthürzeheta'' and ''Zitziratzea'',
* ''Betzulako erreka'' from the ''Betzula'' valley.
Then it is reinforced by the:
* (R) ''Ardaneko erreka'',
* (L) ''Uztarbeko erreka'',
* (R) ''Olhadübiko erreka''.