It is a Castro of Roman times, founded in the 1st / 1st century AD with an occupation period until the 5th / 5th century. Archaeological excavations began in 1943 to 1954, in a second phase from 1974 to 1979, continuing recently with archaeological campaigns. This fort was fortified with three lines of walls. The defensive walls adapt to the terrain, with regular planning. Of the possible twenty hectares, only 2 have been excavated. At the beginning of the castro, on the right side, we can see the base of a Roman Monument, from the 1st / 1st century AD, built in Flavian times that inside would have equestrian and human sculptures. It has a vast area of dwellings, with several types of constructions, from nuclei of houses with a traditional Castro patio, with circular compartments and vestibule, to the larger square or rectangular Roman dwellings.