Or SAN Martin De Salas, a town of southern Spain, in the province of Oviedo; on the road from Tineo to Grado, and on a small sub-tributary of the river Narcea. Pop. (1900), 17,147. The official total of the inhabitants includes not only the actual residents in the town, but also the population of the district of Salas, a mountainous region in which coal-mining and agriculture are the principal industries. The products of this region are sent for export to Cudillero, a small harbour on the Bay of Biscay.