Regulated by royal edict of Alfonso X the Wise in 1273. While the paths used by the glens then known as royal tours were used from old by pastoralism , the decree of Alfonso X pursued by the regulation, management and protection of certain roads whose importance , use or location deserved to be preserved for possible violations. A real gorge should have a width of 90 Castilian twigs (72.22 meters) and had the characteristic of being drawn very long haul (over 500 km ) and discourse mainly in north-south direction with the logical constraints imposed geography . With the actual control , also it was prohibited commonly performed trimming owners adjacent land by movement of markers. Our Chozo or guardaviñas wants to remember their history and meaning of it.