Irati (river)

Iratiko erreka
The gorges of Foz de Lumbier
Course of the Irati in the Ebro basin
Location
CountrySpain
RegionSangüesa, Navarre
Physical characteristics
Source 
  locationconfluence Urtxuria and Urbeltza, Irati Forest
  coordinates42°58′16″N 1°2′53″W / 42.97111°N 1.04806°W / 42.97111; -1.04806
MouthAragón
  location
north of Sangüesa
  coordinates
42°35′26″N 1°16′24″W / 42.59056°N 1.27333°W / 42.59056; -1.27333
  elevation
400 m (1,300 ft)
Length83.8 km (52.1 mi)
Basin size522.28 km2 (201.65 sq mi)
Discharge 
  average34.377 m3/s (1,214.0 cu ft/s)
Basin features
ProgressionAragónEbroBalearic Sea

The Irati river (Basque: Iratiko erreka) is a right bank tributary of the Aragon in Sangüesa, Navarre. It begins in the Irati Forest, then feeds the water retenue of 'Itoiz.

Flowing northward, the river receives its French tributary, l’Iratiko. Before reaching Irabia, it is dammed to form Lake Irabia, a reservoir created in 1921. This picturesque lake, located in the heart of the forest, is also fed by the Urrio River, another northern tributary.