Hundimientos del Filón Sur de 1902 y 1908 Historical milestone · Minas de Riotinto, Cuenca Minera, Huelva Image of Minas de Riotinto, not of the place itself. In April 1902 a major ground movement in the Filón Sur caused a section of the historic village of Riotinto to collapse, leading to new housing being built at Alto de la Mesa to rehouse those affected. In January 1908 a further collapse destroyed about two hundred houses and left many more in ruins. Abril de 1902 y enero de 1908 Photo: David Perez (CC BY 4.0) What to see and do in Minas de Riotinto