The Old Mine is called “the Cathedral of Work and Toil”. You can hardly find a more honourable name of what used to be the old miners’ place for work from the middle of the 17th century until a couple of centuries later.
To keep himself and his family alive, the miner would here fight a daily battle against the resistant ore. The ore was extracted by the firesetting method. Big fires were lit alongside the rocks to make them crack. After the flames died and the smoke was ventilated, the miner went to work with his pick, breaking loose stones where the rocks had cracked. In this way the mine slowely but surely grew.