These are the oldest stone tools ever found in the United States

Enlarge / Rimrock Draw Rockshelter has been excavated since 2011. Stone tools unearthed from a rock shelter in Southern Oregon were last used more than 18,000 years ago, radiocarbon dating suggests. That makes the site one of the oldest-known human living spaces in the Americas. But the people who lived in Oregon more than 18,000 years ago almost certainly weren’t the first to call the continent home. A home where the buffalo roam

Buried deep beneath a layer of volcanic ash, archaeologists excavating Rimrock Draw Rockshelter found two stone scraping tools, which ancient knappers had skillfully shaped from pieces […]

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