Hundreds of ancient ‘Stonehenge’ geoglyphs found in Brazil’s Amazon rainforest

Hundreds of ancient earthworks resembling those at Stonehenge were discovered in the Amazon rainforest by scientists flying drones over the area.

The findings prove for the first time that prehistoric settlers in Brazil cleared large wooded areas to create huge mysterious enclosures.

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More than 450 ‘Stonehenge’ earthworks, also called geoglyphs, were discovered using drones in the Brazilian rainforest Picture by SALMAN KAHN and JOSÉ IRIARTE

The ditched enclosures, situated in Acre state in the western Brazilian Amazon, have been concealed for centuries by trees, but modern deforestation has allowed 450 to emerge from the undergrowth. They were discovered after scientists from the UK and Brazil flew drones over last year.

The earthworks, known by archaeologists as ‘geoglyphs’ probably date from around the year zero.

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The monuments look like early phases at Stonehenge in Wiltshire, say archeologists. Picture by SALMAN KAHN and JOSÉ IRIARTE

Both round and square enclosures were discovered by the drones, which probably were ritual sites. Although the function of the sites is unknown Dr Watling said they resembled Neolithic causewayed enlosures found at sites such as Stonehenge in Wiltshire, although they appear to be more regular.

It is therefore likely that the geoglyphs were used for similar functions to the Neolithic causewayed enclosures, i.e. public gathering, ritual sites. It is interesting to note that the format of the geoglyphs, with an outer ditch and inner wall enclosure, are what classicly describe henge sites. The earliest phases at Stonhenge consisted of a similarly layed-out enclosure.

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Both round and square mysterious enclosures were discovered by the drones, which probably were ritual sites. Pictures by SALMAN KAHN and JOSÉ IRIARTE

Although Stonehenge is around 2,500 years older than the geoglyphs found in Brazil, they are likely to represent a similar period in social development.

The enclosures are unlikely to represent the border of villages, since archaeologists have recovered very few artefacts during excavation. It is thought they were used only sporadically, perhaps as ritual gathering places, as they have no defensive features such as post holes for fences.

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Quite similar with Stonehenge indeed. Picture by ENGLISH HERITAGE

This discovery reverses assumptions that the rainforest ecosystem has been untouched by humans. The fact that these sites lay hidden for centuries beneath mature rainforest really challenges the idea that Amazonian forests are pristine ecosystems.

Using state-of-the-art methods, the team members were able to reconstruct 6000 years of vegetation and fire history around two enclosure sites. They found that humans heavily altered bamboo forests for millennia and clearings were made to build the geoglyphs.

Deforestation is bad… Sometimes revealing mysterious geoglyphs and other hidden archeological wonders.

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