Hornos de calcinación minera Historical milestone · Olula de Castro, Filabres-Tabernas, Almería Image of Olula de Castro, not of the place itself. Remains of the calcination kilns and cable transport system of the early 20th-century iron mining industry, which connected to the Fuente Santa station. Photo: Ziegler175 (CC BY-SA 4.0) What to see and do in Olula de Castro