Explore details about location Carretera Irún - Santiago. Carretera Irún - Santiago is a location situated within the Grau/Grado alongside other areas such as Autovía Oviedo - La Espina, Carretera Irún - Santiago, Carretera Irún - Santiago. Additionally, some smaller parts of Carretera Irún - Santiago include specific areas like Autovía Oviedo - La Espina adding to the diversity of its landscape.