The reopening of the jasper quarries Historical milestone · Espejón, Tierras del Burgo, Soria Image of Espejón, not of the place itself. Worked already in Roman times and abandoned after the fall of the Empire, the quarries were opened again at the beginning of the sixteenth century to supply ornamental stone for the great works of the monarchy and of the Church. comienzos del siglo XVI Photo: Gelillo85 (CC BY-SA 4.0) What to see and do in Espejón