For the past five years archaeologists have been tracking a series of rock art findings in north-central Chile’s Limari Valley. The experts involved say finding traces of the visual language used by the area’s inhabitants has been difficult; the paintings are highly deteriorated and cannot be identified with the naked eye. But with the help of digital technology including high-resolution cameras, tablets and specialized software, researchers have been able to detect the presence of paintings that time and erosion have almost erased.
The team of Chilean anthropologists and archaeologists found more than 150 paintings. They were probably created by hunter-gatherers between 2000 BC and 500 AD in the Coquimbo Region, an area south of the Atacama Desert that extends to about 400 kilometers north of the Chilean capital, Santiago.