The dehesas of Entresierras Nature · Casafranca, Guijuelo, Salamanca The municipality lies in the sub-comarca of Entresierras, at the head of the Alagón, a corridor of dehesas between the Sierra de Francia and the Sierra de Béjar where holm oaks, Pyrenean oaks and chestnuts mix with broom and French lavender. Photo: Hovallef (CC BY-SA 4.0) What to see and do in Casafranca