“Lost” Amazon Complex Found; Shapes Seen by Satellite

Publication: National Geographic News   Date: January 4, 2010   View Article

Hundreds of circles, squares, and other geometric shapes once hidden by forest hint at a previously unknown ancient society that flourished in the Amazon, a new study says.

Satellite images of the upper Amazon Basin taken since 1999 have revealed more than 200 geometric earthworks spanning a distance greater than 155 miles (250 kilometers).

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