The Basque sub-dialect of the vallye, known as Aezkoera, belongs to the High Navarrese dialect but it has strong influence from Lower Navarrese and specially nearby subdialect of Salazar Valley.
•
Aezkoa valley encompasses the upper course of the Irati river, a territory full of oak and beech woods (60% of the land).
•
In the 20th century the most important phenomenon is the rural exodus, caused by the crisis of the cattle-herding sector, that reduced its population to only c.1000 inhabitants.