Cultural Heritage
Castro de San Isidro
Castro de San Isidro is one of the most unique archaeological sites in Asturias, located on the ridge that separates the municipalities of San Martín de Oscos and Pesoz, in the vicinity of the village of Bousoño. Its importance lies in the presence of an exceptional defensive system made up of "Frisian horses", a set of stones driven vertically into the ditches, whose function was to make it difficult for possible attackers to advance. This type of defence, which is rare in the region, makes it a unique enclave in the Asturian context.
The site is interpreted as a Roman military camp from the 1st-2nd centuries AD, strategically established to control the territory and the nearby gold mines. From its location, it visually dominates wide valleys and natural passes, which reinforces its strategic value during the Roman period.
Today, the castro not only offers a window into the Roman past of the region, but also a privileged natural environment that invites contemplation of the landscape and the discovery of a little-known but profoundly significant history.
Difficult to access by vehicle, and poorly signposted.