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The Race to Protect Atacama’s Ancient Geoglyphs

Ancient geoglyphs in Chile's Atacama Desert face threats from vehicles and mining, risking irreversible damage. Learn about the archaeological efforts to protect this historical site.

ByMaría de los Ángeles Orfila
Tire tracks driving over Alto Barranco geoglyphs.Credit: Atacama Foundation

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On the arid and seemingly sterile surface of the Atacama Desert lies an invaluable treasure of history and culture: thousands of ancient geoglyphs etched on the slopes of the hills, silent witnesses to the caravan routes of pre-Hispanic peoples.

Gonzalo Pimentel, archaeologist and president of the Atacama Foundation, describes them as accurate maps leading to the Pacific Ocean and records of memories, habits, and customs. Colossal human figures, llamas, birds, and enigmatic geometric shapes have reflected the Andean worldview for over 3,000 years.

However, this invaluable heritage — which has yet to be fully explored — is under constant threat. Among the main culprits are formal and informal rallies, as well as mining activities. The passage of vehicles leaves marks that alter the original designs, rendering them unrecognizable and, in some cases, irreparable.

Pimentel believes this is the case with the geoglyphs at Alto Barranco, which are over a thousand ...

  • María de los Ángeles Orfila

    María de los Ángeles Orfila is a science journalist based in Montevideo, Uruguay, focusing on long-form storytelling. Her work has appeared in Discover Magazine, Science, National Geographic, among other outlets, and in leading Uruguayan publications such as El País and El Observador. She was a fellow in the 2023 Sharon Dunwoody Mentoring Program by The Open Notebook and often explores the intersections of science, culture, and Latin American identity.

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