The Anllóns is a Galician river

River

A river is a natural watercourse, usually freshwater, flowing towards an ocean, a lake, a sea, or another river. In a few cases, a river simply flows into the ground or dries up completely before reaching another body of water. Small rivers may also be called by several other names, including...

 whose source lies in the Xalo Mountains, at a height of 400 m., and flows into the Atlantic via the Ria of Corme and Laxe.

Its length is 54.4 km, crossing the municipalities of Cabana de Bergantiños

Cabana de Bergantiños

Cabana de Bergantiños is a municipality of Spain in the Province of A Coruña, in the autonomous community of Galicia....

, Carballo

Carballo

Carballo is a municipality of Spain in the Province of A Coruña, in the autonomous community of Galicia.The seafood company Calvo is headquartered here....

, Cerceda

Cerceda

Cerceda is a municipality of Spain in the Province of A Coruña, in the autonomous community of Galicia.-External links:*...

, Coristanco

Coristanco

Coristanco is a municipality of Spain in the Province of A Coruña, in the autonomous community of Galicia....

 and Ponteceso

Ponteceso

Ponteceso is a municipality of Spain in the Province of A Coruña, in the autonomous community of Galicia....

. Its average flow is 9.931 m³.

It was declared a Site of Community Importance

Site of Community Importance

A Site of Community Importance is defined in the European Commission Habitats Directive as a site which, in the biogeographical region or regions to which it belongs, contributes significantly to the maintenance or restoration at a favourable conservation status of a natural habitat type or of a...

 in the year 2001. It is fed by brooks like the Graña, Quenxe, Acheiro, Abaixo, Queo or Bertón during its high course. After the pass at Mount Neme, it feeds the water of the brooks Gándara, Bandeira, Vao, Galvar, Portecelo or Batán, and in its low course its tributaries include the brooks Lourido, Ponteceso, Prados and Bouzas.