Six villages and seventy-three residents Curiosity · Arancón, Frentes, Soria The municipality groups six settlements, Arancón, Calderuela, Cortos, Nieva de Calderuela, Omeñaca and Tozalmoro, which in 2025 added up to 73 inhabitants as against the 188 that the municipal district gathered in 1842. Photo: Miguel Ángel García. from Ólvega., España (CC BY 2.0) What to see and do in Arancón