The mining "cuarteles" of the Nalón (workers' housing) Curiosity · San Martín del Rey Aurelio, Nalón, Asturias Image of San Martín del Rey Aurelio, not of the place itself. The workers' dwellings raised beside the mine entrances are called cuarteles here: rows of humble houses that housed the mining families and that can still be recognised in the built fabric of El Entrego, Sotrondio and Blimea. Photo: Armandin (CC BY-SA 3.0) What to see and do in San Martín del Rey Aurelio