Castro Valnera

Castro Valnera (Spanish) or Castru Valnera^[1] (Cantabrian) is a peak located in the central area of the Cantabrian Mountains, in the border between the province of Burgos and Cantabria, northern Spain. It is around it that the whole Pas valley revolves, and also the source of the Miera River, between the Portillo de Lunada and Estacas de Trueba passes.

Castru Valnera
Castru Valnera peak in 2017
Highest point
Elevation	1,718 m (5,636 ft)
Prominence	866 m (2,841 ft)
Geography
Location	Cantabria, Spain
Parent range	Montes de Lunada
Topo map

Castru in Cantabrian refers to an abrupt rocky peak.