New lidar technology revealed the formerly hidden, at least from the ground, site. The “lidar survey found 21 other monumental platforms, clustered in groups around the region. But Aguada Fenix is by far the largest—in fact, it’s the largest single Maya structure archaeologists have ever found. It took between 3.2 million and 4.3 million cubic meters (113 million to 151 million cubic feet) of clay and soil to build up the platform. That’s a larger volume than the famous pyramids built centuries later during what’s known as the Maya Classic Period. It’s also much older than any other Maya monument, old enough to suggest that the Maya started working together on huge construction projects much earlier than modern archaeologists had suspected until now.” – Ars Technica