The Zapotec civilization was an indigenous pre-Columbian civilization. It was mainly in the Valley of Oaxaca of southern Mesoamerica. Archaeologists think their culture goes back at least 2500 years. The Zapotec left traces at the ancient city of Monte Albán. There are buildings, ball courts, magnificent tombs and grave goods. In the graves, finely worked gold jewellery was found. Monte Albán was the first major city in the western hemisphere. It was the center of a Zapotec state that dominated much of what is now the state of Oaxaca.