Amazing stuff! This was one of the big archaeological stories of recent times!
Did you know that the Amazon rainforest extends all the way to Ecuador? I did not or had forgotten about it.
"Archaeologists have uncovered a cluster of lost cities in the Amazon rainforest that was home to at least 10,000 farmers around ..."
"Archaeologists once believed the ancient Amazon rainforest was an inhospitable place, sparsely populated by bands of hunter-gatherers. But the remains of enormous earthworks, pyramids, and roads from Bolivia to Brazil discovered over the past 2 decades have proved conclusively that the Amazon was home to large, complex societies long before European colonizers arrived. Now, there’s evidence that another human society—the oldest yet—left its mark on the region: A dense network of interconnected cities, now hidden beneath the forest in Ecuador’s Upano Valley, has been revealed by the laser mapping technology called lidar. The settlements, described today in Science, are at least 2500 years old, more than 1000 years older than any other known complex Amazonian society. ..."
From the editor's summary and abstract:
"Editor’s summary
When intact, the Amazonian forest is dense and difficult to penetrate, both on foot and with scanning technologies. Over the past several years, however, improved light detection and ranging scans have begun to penetrate the forest canopy, revealing previously unknown evidence of past Amazonian cultures. Rostain et al. describe evidence of such an agrarian Amazonian culture that began more than 2000 years ago. They describe more than 6000 earthen platforms distributed in a geometic pattern connected by roads and intertwined with agricultural landscapes and river drainages in the Upano Valley. Previous efforts have described mounds and large monuments in Amazonia, but the complexity and extent of this development far surpasses these previous sites. ...
Abstract
A dense system of pre-Hispanic urban centers has been found in the Upano Valley of Amazonian Ecuador, in the eastern foothills of the Andes. Fieldwork and light detection and ranging (LIDAR) analysis have revealed an anthropized landscape with clusters of monumental platforms, plazas, and streets following a specific pattern intertwined with extensive agricultural drainages and terraces as well as wide straight roads running over great distances. Archaeological excavations date the occupation from around 500 BCE to between 300 and 600 CE. The most notable landscape feature is the complex road system extending over tens of kilometers, connecting the different urban centers, thus creating a regional-scale network. Such extensive early development in the Upper Amazon is comparable to similar Maya urban systems recently highlighted in Mexico and Guatemala."
Laser mapping reveals oldest Amazonian cities, built 2500 years ago Neighborhoods, farms, and roads are 1000 years older than previous discoveries
Two thousand years of garden urbanism in the Upper Amazon (no public access)
Google maps of Upano Valley
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