It is bordered on the north by the Cantabrian Sea, on the east by El Franco, on the south and west by Castropol.

The council is divided into parishes, formed in turn by places or neighborhoods (small groups of widely scattered houses) throughout the territory.

This is due to land ownership typical in the Autonomous Community: smallholder highly fragmented into small parcels.

The terrain is gentle enough altitudes into the interior of the municipality are the most noteworthy pointing the Grandela (348 m) and the hill of Posadoiro (600 m).

This grant was ratified by King Alfonso VII in the 12th century, which confirms that the territory of Oviedo is the Obispalia, in strong conflict with that of Lugo Salave retaining possessions and Villamil.