Yagul is an archaeological site and former city-state associated with the Zapotec civilization of pre-Columbian Mesoamerica, located in the Mexican state of Oaxaca. The site was declared one of the country's four Natural Monuments on 13 October 1998. The site is also known locally as Pueblo Viejo (Old Village) and was occupied at the time of the Spanish Conquest. After the Conquest the population was relocated to the nearby modern town of Tlacolula where their descendants still live.