Ternasco of the southern sierras Food and drink · Aladrén, Campo de Cariñena, Zaragoza The pastures of the sierras that close the comarca to the south sustain the sheep farming of native Aragonese breeds from which the ternasco comes, lamb slaughtered between seventy and a hundred days. It has held a protected geographical indication since 1999. Photo: Tamorlan (CC BY-SA 4.0) What to see and do in Aladrén