Massive 3,000-year-old ceremonial complex discovered in 'plain sight'

From the article:

An enormous 3,000-year-old earthen platform topped with a series of structures, including a 13-foot-high pyramid, has been identified as the oldest and largest monumental construction discovered in the Maya region, according to a paper published today in the journal Nature. It’s the latest discovery to support the emerging view that some of the earliest structures built in the Maya region were significantly larger than those built more than a millennium later during the Classic Maya period (250-900 A.D.), when the empire was at its peak. The discovery took place in Mexico’s Tabasco State at the site of Aguada Fénix, about 850 miles east of Mexico City.