Hiking route through the Puertollano coal basin to discover its mining past, the preserved mining heritage, and the landscape resulting from mining operations. The route includes visits to old mining villages, mine shafts, mining landscapes, and the Carboniferous deposit located at the bottom of a former open-pit mine. It covers both the eastern and western parts of the mining basin. Departure from the Ethnological Museum, passing through Terri, Pozo Elorza, Carbonífero, Argüelles, Muelle María Isabel, Asdrúbal, Valdepeñera, the Ojailén River, Camino Corredor, and the Mining Museum.