Aezkoa Valley is an administrative unit of Navarre, Spain. It is formed by several smaller municipalities: Abaurregaina, Abaurrepea, Aria, Aribe (seat of the Valley administration), Garraioa, Garralda, Hiriberri (town), Orbaitzeta and Orbara.
The valley has c. 1200 people inscribed as residents but only around 800 live there regularly.
Aezkoa valley encompasses the upper course of the Irati river, a territory full of oak and beech woods (60% of the land). The more mountainous fraction of it is known as the Irati Forest, that also extends into Lower Navarre. It has two natural reverves: Mendilatz, in the Irati Forest, and Truistuibartea. The upper Irati also has a reservoir known as Irabia reservoir, in the midst of Irati Forest.
Other points of interest are the ruins of the weapons' manufacture of Orbaizeta. Orbaizeta also has a hospedage and used to have a camping but it is now out of business. There are several megalithic monuments in the mountains north of the valley, that are part of the Pyrenees. Best known, maybe because it's easy access, is the dolmen of Urkuilu mountain.
It is known that, before the consolidation of the Kingdom of Navarre in the 9th century, there was already a community in the valley that possibly was participant in the famous Battle of Roncevaux, not far away. The lineage of Abaurrea is the oldest one to be mentioned living in the valley.
Aezkoans also participated in the Battle of Navas de Tolosa in 1212. King Sancho the Wise improved the chart of the valley in 1229. In 1443 Aezkoa gained the control of its mountain passages. In 1462 the Valley gained collective gentry rights for all its inhabitants. Since then, all kings gave oath to respect the chart of the valley until 1609.