Monumento Natural de Ojo Guareña

Ojo Guareña is a karst complex located in the Cantabrian Mountains of Castile and Leon, Spain, declared a natural monument by the government of Castile and Leon in 1996. It is composed of over 90 kilometres of galleries and passages within an area of some 13,850 hectares.

09568 Cueva, Burgos, Spain

Cueva Ermita de San Bernabe Carretera, BU-V-5626, S/N, 09568 Cueva, Burgos, Spain

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