Toca da Tira Peia, Archaeological rock shelter in Coronel José Dias, Piauí, Brazil
Toca da Tira Peia is an archaeological site set inside a natural rock shelter near Coronel Jose Dias in the state of Piaui, Brazil. The shelter covers a layered excavation area where stone tools were found at different depths within the sediment.
Excavations carried out in the 2000s and 2010s uncovered stone tools that pointed to human occupation much earlier than the dates previously accepted for settlement in the Americas. The findings were met with wide debate and pushed researchers to reconsider long-held views on how and when people first reached South America.
The stone tools found here sparked a global debate among researchers about when people first arrived in the Americas. Visitors can still see the rock layers where the artifacts were uncovered, giving a direct sense of the scale of the discovery.
The site sits in a remote area and the path leading to it can become slippery and hard to walk after heavy rain. Reaching it comfortably requires planning ahead and ideally connecting with a local guide who knows the terrain.
The stone tools were found exactly where they were left thousands of years ago, with no later human activity disturbing their position. This undisturbed arrangement is rare at sites of this age and gives researchers an unusually clear picture of how early people used the space.
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