La Mina do Salgueiro, situada en San Tirso de Abres (Asturias), fue una importante explotación de hierro con orígenes que podrían remontarse a época romana. Ubicada en la zona de San Salvador, conserva varias galerías excavadas en la roca, algunas con evidencias de trabajos tanto antiguos como industriales modernos. La mina formó parte del sistema minero del occidente asturiano, vinculado al transporte de mineral por el antiguo ferrocarril Villaodrid–Ribadeo.
Aunque cerró definitivamente en 2018, sigue siendo un punto de referencia del patrimonio minero de la comarca. Sus restos forman parte del paisaje cultural del valle del Eo, junto a castros como el de As Croas de Eilale, con los que probablemente mantuvo relación funcional. Hoy, la mina permanece cerrada al público, pero su historia perdura a través de rutas de senderismo y el recuerdo de quienes trabajaron en sus galerías.
Recently, the Town Council of Villanueva de Oscos, with the collaboration of the Principality of Asturias, has recovered and rehabilitated the mines of this municipality.
The Viduedo farm is a certified organic livestock farm located in the village of As Poceiras, where the animals are raised in direct contact with the environment, feeding all year round on natural pastures, which is a guarantee of health and quality.
In the town of Villarquille (San Martín de Oscos) we find the Casa del Marco, a peasant house with its furniture, tools and implements which shows the way of life of the rural society of the region until the mid-twentieth century.
Located in Pardiñas, 1 km from the capital of the council, the museum of the Cutlery offers the possibility of approaching the most representative trade of the council of Taramundi: the navalleiros.
Among the artistic heritage of San Martín de Oscos it is worth mentioning the legendary and majestic Palacio de Mon. Conditioned by the sloping terrain, its main facade faces south while its foundations adapt to the slope, fitting into the west bay below ground level while developing height to the east.
The house where Antonio Raimundo Ibáñez, Marquis of Sargadelos (1749-1809) was born is now an exhibition space dedicated to the life and work of this industrial and enlightened merchant, who in the late 18th century built in Sargadelos (Cervo, Lugo) one of the first cast-iron foundry and earthenware factories in Spain.