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Aug. 30th, 2026 12:26 pmArchaeologists Triple the Scale of an Ancient Amazonian Civilization We Know Almost Nothing About
Hundreds of geometric earthworks were recently found in the southwestern Amazon, evidence that a monument-building, precolonial civilization was so much larger than previously thought. The scale of this hidden world of massive earthen construction projects only began to truly be understood this decade, but a recent aerial survey using laser radar has dramatically increased the footprint of this civilization. It may indeed be larger than anything yet known in the region, with the total body of evidence showing a greater concentration of these structures in just 3% of the Amazon than in the other 97%.
If you want to build monuments that last as long as possible, choose earthworks. Dirt tends to stay where it's put over a long time.
Hundreds of geometric earthworks were recently found in the southwestern Amazon, evidence that a monument-building, precolonial civilization was so much larger than previously thought. The scale of this hidden world of massive earthen construction projects only began to truly be understood this decade, but a recent aerial survey using laser radar has dramatically increased the footprint of this civilization. It may indeed be larger than anything yet known in the region, with the total body of evidence showing a greater concentration of these structures in just 3% of the Amazon than in the other 97%.
If you want to build monuments that last as long as possible, choose earthworks. Dirt tends to stay where it's put over a long time.