Important Late Preclassic Olmec ceremonial site, located near Tuxtla Mountains in southern Veracruz, Mexico. The site has cut-stone facings on its rectangular pyramid and numerous unevenly scattered earthen mounds. It flourished long after the abandonment of La Venta or San Lorenzo and was partly contemporaneous with Middle Preclassic Olmec florescence. Occupied from 1000-600 BC, the pottery was flat-bottomed and white-rimmed and there were colossal stone heads. Later periods had the increasing presence of Izapan pottery forms and Maya-influenced stelae. The site's most important find is the epi-Olmec Stele C which has the earliest Maya Long Count date yet discovered, 31 BC.