|Source elevation||82 m|
|Avg. discharge||18.8 m³/s|
|Basin area||1,700 km²|
The river is generally presented as the confluence of:
- the Grande Leyre (Large Leyre), its principal course, upstream from Moustey,
- the Petite Leyre (Small Leyre), its main tributary.
Note that Leyre is a variant of the name Eyre, affected by an agglutination of the Romance article.
The basin of the Eyre in included in the parc régional des Landes de Gascogne (National Park of the Moors of Gascony).
The Eyre flows through a preserved environment. Its banks are bordered by a broad-leaved forest. Branches join over the river, forming a gallery forest, that contrasts with the Landes forest, planted with maritime pines.
Départements and towns
The Eyre flows through the following départements and towns:
- (R) Petite Leyre
N.B. : (R) = right tributary; (L) = left tributary
During the creation of French départements in 1790, it has been suggested to create a large département matching with the natural region of Moors of Gascony, that is the today Landes forest (by the time not yet planted). The name of this département would have been the Eyre.
Activities on the river
- Canoeing (canoes rentals)