This region is characterized by having a high concentration of heavy metal sulphides on their lands, mainly composed of pyrites and chalcopyrites. In these lands there is a weathering process caused by the microbiological oxidation of these minerals caused by certain acidophilic bacteria that cause extreme acidity in their waters and lands. This image shows the terrain that is part of an accumulation of these materials; This, together with the action of rainwater and subsequent drying by the action of the sun, causes the appearance of ephemeral shapes and colors of a special intensity. [+]