Castro Valnera
 Castru Valnera (Cantabrian) or Castro Valnera (Spanish) is a peak located in the central area of the Cantabrian Mountains in Cantabria northern Spain. It is around it that the whole Pas valley revolves and also the source of the Miera River between the Lunada and Estacas de Trueba passes. Castru in Cantabrian refers to an abrupt rocky peak.