Armañón Natural Park

Armañón Natural Park

Located in a region known as Las Encartaciones, in the extreme west of Bizkaia on its border with Cantabria, is the mountainous massif which is Armañon Natural Park.

It is a primarily a rural, hilly and mountainous área featuring four main mountains: Armañón, Ranero, Surbias and Los Jorrios.  

There are over 200 subterranean caves and potholes in the park. Make sure to visit the Pozalagua Cave with its impressive rock formations and fascinating stalactites.

Further information about the Natural Park and the nearby Ordunte mountains is available at the Pozalagua Cave. Both the Ordunte mountains and the Armañon Natural Park belong to the Natura 2000 network.

Several native breeds of animal have survived in this very rural area. During your visit, you are likely to see blond-faced or black-faced Carranzana sheep, the Villano de las Encartaciones working dog or the Monchina cattle, among others.

In addition, thanks to an exhibition offered by the interpretation centre, visitors can find out about the flora and fauna of the area. They will also have the opportunity to discover the Natural Park, the autochthonous species and the subterranean world by means of a virtual flight.

Places of interest:

Information of interest

Natural Park
2.985 ha

Interpretation centre of the Armañon nature park 

Ranero, Karrantza (Bizkaia)

946 560 079

Hours: from Tuesday to Sunday from 10.00 to 14.00 and from 16.00 to 18.00 hours

Parketxe de Trucíos

Avenida Lehendakari Aguirre s/n, 48880 Trucíos-Turtzioz.

Hours: from 10:00 to 14:30.

Turismo Encartaciones

+34 946 802 976

Karrantza Harana/Valle de Carranza Tourist Office

+34 946 806 928/ 696 446 301


  • Recreational area
  • Barbecue
  • Bar-stall
  • Caves
  • Forest ranger
  • Monuments
  • Restaurant
  • Sports-gymnastic routes