Acre geoglyphs, Prehistoric earthwork formations in Acre, Brazil
The geometric patterns spread across the Amazon rainforest include more than 400 earthen structures featuring circles, squares, and linear designs carved into the ground.
Archaeological studies indicate these structures were created between 300 BC and AD 1000, representing advanced engineering capabilities of pre-Columbian Amazonian societies.
The geometric earthworks demonstrate the sophisticated land management practices and territorial organization methods developed by indigenous communities in western Amazonia.
The geoglyphs remain under consideration for UNESCO World Heritage status while IPHAN, the Brazilian heritage institute, maintains protection and research initiatives.
Researchers discovered that the creators of these geometric patterns constructed them without metal tools, utilizing precise measurements to form large-scale ground designs.
Location: Acre
GPS coordinates: -9.04778,-70.52639
Latest update: March 7, 2025 17:04
Manu National Park
365.9 km
Tambopata National Reserve
452.1 km
Palácio Rio Branco
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Alto Purús National Park
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Serra do Divisor National Park
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