The wolves of Oncala-Valtajeros Nature · Carrascosa de la Sierra, Almarza, Soria Image of Carrascosa de la Sierra, not of the place itself. The municipal district includes 119 hectares of this site of community importance, through which wolves still move freely; the climate is harsh, with winters that drop below ten degrees under zero. Photo: Wiki42 (CC BY-SA 4.0) What to see and do in Carrascosa de la Sierra