On Mt. Potosi there are two types of mines: cooperative mines and State-operated mines. In State mines, the miners work in decent conditions - good safety measures and wages. But I recommend a visit to the private mines. Or maybe visit both for comparison. Before entering a mine, miners cross themselves. In the darkness of the mine, you enter the realm of Supay the Devil. You'll be astonished by the harsh working conditions and gain understanding of the Andean worldview.