The Villoria fault Nature · Villoria, Las Villas, Salamanca Image of Villoria, not of the place itself. The Tertiary sedimentary terrain of the municipal district is cut by a fault that runs between the settlement and Alba de Tormes; geologists consider it a phenomenon of great interest for understanding the formation of the Duero basin. Photo: Villavillavilla123456 (CC BY-SA 4.0) What to see and do in Villoria