Here is a collection of headlines and links about pre-Columbian earthworks found in the Amazon region of South America showing signs of an enormous civilization that was much more advanced than was previously understood.
- Pre-Columbian earth-builders settled along the entire southern rim of the Amazon
- Long Before Making Enigmatic Earthworks, People Reshaped Brazil’s Rain Forest
- Hundreds of ancient earthworks built in the Amazon
- Geometric Earthworks of Western Amazonia
- Hundreds of Geoglyphs Discovered in the Amazon
- "Lost" Amazon Complex Found; Shapes Seen by Satellite
