Petroglyphs, some of which date back 2,000 years, have resurfaced along the Amazon riverbanks in Brazil at an archaeological site known as the Ponto as Lajes, or Place of Slabs, due to an unprecedented drought.
The historic dry spell is believed to be linked to the El Niño weather pattern and the ongoing climate crisis. Water levels at the Rio Negro have managed to fall to never-before-seen levels, at a depth of 12.89 meters.
Carlos Augusto da Silva, an archaeologist from the Federal University of Amazonas, has identified 25 groups of carvings, which were located on a single rock. The official believes the rock acted as a whetstone for sharpening various instruments.
Fragments of pottery believed to be thousands of years old have also reportedly been found at the site, where large Indigenous villages were located in pre-Columbian times.
Remarkably, despite its archaeological importance, the Ponto das Lajes petroglyphs have never been thoroughly studied. Researchers are estimating their age based on similar rock carvings found in other parts of central Amazonia.
Archaeologist Filippo Stampanoni Bassi emphasized the significance of preserving these historical sites, stating they "tell the region’s ancient Indigenous history and must be treated with respect by all of us who live in Manaus today."