Plan a Ontoria vacation with reviews, tips and photos posted by real travelers and Ontoria locals
Our members can help!
1
Zinc Mining in Udías and Novales

In the early 1850s the geologist Pío Josué y Barreda undertook a series of surveys in the Comillas, Udías and Ruiloba districts, in search of zinc. In 1853 Jean J. Chauviteau claimed mining rights...
Build your own Ontoria page