Explore details about location Casco Viejo. Casco Viejo is a location situated within the Municipio de Centenario alongside other areas such as Sayhueque II, Ciudad de Centenario, Lago Lacar. Additionally, some smaller parts of Casco Viejo include specific areas like Primeros Pobladores, Villegas, Ing. Ballester adding to the diversity of its landscape.