The property is an exceptional reflection of the evolution from hunter-gathering to more settled communities in this area of the Oaxaca valley. Management and protection requirementsEven if the Yagul part of the property enjoys protection by presidential decrees, the remaining archaeological and landscape areas do not currently have national or municipal protection. All visible archaeological evidence is recorded on record sheets for each site, together with mapping and photographs. CONANP is responsible for the conservation of natural species and scenic spots in the Yagul area. In 1999, a Management Plan was approved for the Oaxaca Valley Archaeological Corridor (CAVO), attached to the existing management plan of the Monte Alban Archaeological Zone.