The Iron Mines of Olmacedo Curiosity · Ólvega, Moncayo, Soria Image of Ólvega, not of the place itself. Iron mines are documented in the municipal district as early as 1589, at spots such as Virgilio, Olmacedo and La Almagrera; to these were added lead workings that sustained the village's economy for centuries. Photo: Miguel Ángel García. from Ólvega., España (CC BY 2.0) What to see and do in Ólvega