Pre-Roman hillfort of Cubillas Nature · Cubillas de los Oteros, Esla-Campos, León Image of Cubillas de los Oteros, not of the place itself. A fortification raised on a promontory beside the village's old schools, on which a population that until then had lived in intermittent settlements on the rises of the Oteros finally settled for good. Photo: Adolfobrigido (CC BY-SA 4.0) What to see and do in Cubillas de los Oteros