Archaeologists have uncovered a cluster of lost cities in the #Amazon #rainforest that was home to at least 10,000 farmers about 2,000 years ago:

"a very dense occupation and an extremely complicated society"
#Upano #Equador

https://www.theguardian.com/science/2024/jan/11/amazon-archaeology-lost-cities-ecuador

Valley of lost cities that flourished 2,000 years ago found in Amazon

Laser-sensor technology reveals network of earthen mounds and buried roads in rainforest area of Ecuador

The Guardian