Course
The river begins in a place called "Fonte das Abellas", near the village of Cabude, the parish of Foilebar, in the municipality of Inicio. The river flows through the village of Fontes, Trascastro, Inicio and San Pedro do Incio, in the municipality of O Incio. It then enters the municipality of Puebla del Brollón and flows through the villages of Biduedo, Pacios de Veiga, Veiga, Santalla de Rey, Eixón and Fornelas. It begins at the Saa River and enters the concello of Monforte de Lemos and flows through the villages of A Parte, O Freixo, Ribas Altas where it joins with the Mao river and enters the capital of Monfortina where it crosses a medieval bridge. The river then flows through Piñeira and Distriz in Monforte de Lemos. It serves as a boundary between the concellos of Panton andTribituaries
*Antigua *Fontán, Cebedezo *Santa Bárbara *San Miguel *Picarrexo *Saa *Habitats
* Oak tree forests of Quercus robur andFlora
*Festuga elegansFauna
* Woodlark (Lullula arborea) * European nightjar (Caprimulgus europaeus) *