where are las medulas
Las MÃ©dulas. Las MÃ©dulas (Galician: As MÃ©dulas) is a historic mining site near the town of Ponferrada in the region of El Bierzo (province of LeÃ³n, Castile and LeÃ³n, Spain). It was the most important gold mine (and largest open pit gold mine) in the entire Roman Empire.