Ruins of Quilmes

The Ruins of Quilmes is an archaeological site in the Calchaquí Valleys, Tucumán Province, Argentina. The site was the largest pre-Columbian settlement in the country, occupying about 30 hectares. The area dates back to 850 AD and was inhabited by the Quilmes people; it is believed that about 5,000 people lived here during its heights.
Although discovered in 1888 by Samuel A. [Lafone Quevedo|Samuel Alejandro Lafone Quevedo], the ruins were first studied in 1897 by the archaeologist Juan Bautista Ambrosetti.