Reserva Nacional Nalcas has 6 named peaks. The highest is Volcán Lonquimay at 2,865 m. Other notable peaks include Cerro Cuchillahue, Cerro Treiles and Cordillera de Cuchillahue.
There are 6 named mountains in Reserva Nacional Nalcas. The highest and the most prominent mountain is Volcán Lonquimay.

The highest peak in Reserva Nacional Nalcas is Volcán Lonquimay, at 2,865 m.
Notable peaks in Reserva Nacional Nalcas include Volcán Lonquimay, Cerro Cuchillahue, Cerro Treiles, Cordillera de Cuchillahue and Cráter Navidad.
