The return of copper to La Profunda Historical milestone · Cármenes, La Montaña de Riaño, León Image of Cármenes, not of the place itself. In 1895 a mining company resumed copper extraction at La Profunda after almost two thousand years of silence, reopening galleries that had already been worked in prehistory and in Roman times. 1895 Photo: mroszewski (CC BY-SA 3.0) What to see and do in Cármenes