The mines for the extraction of ichthyol, a fossil substance from which an ointment with an antiseptic action was obtained, operated in the first half of the twentieth century. Subsequently, the spread of mercury-chromium caused the decline in the use of this precious substance.
After passing the "Patanaro" pass, descend on the Serinese side in the direction of the Cirasuolo area, on the path we find the famous ichthyolo mines where we find uncontaminated nature and pure water For the extraction they dug with iron poles and ice axes and also made children work.
The path from this point becomes easy and very beautiful and then connects to other paths, see my Saturday Valleys.