Catalogued as protected landscape it shapes one of the most spectacular landscapes of the country. Its waters of red color are the consequence of the weathering of minerals with high contained in sulphurs as the pyrite and the chalcopyrite that they find along the river. So high it is the concentration of these minerals that has awaked the interest of the NASA because it is very similar to the environment of Mars.
From La Palma del Condado address to Valverde del Camino, on the A-493 about 5 km long, we find this unusual and enigmatic river.
