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An ancient stone tool found buried under volcanic ash in eastern Oregon could be one of the oldest artifacts in North America, dating back over 15,800 years. The tool was discovered at an ancient rock shelter beneath a layer of ash linked to an eruption of Mount St. Helens. If proven to predate the ash layer, it would suggest humans arrived in western North America thousands of years earlier than previously believed. However, some scientists remain skeptical until further excavations and analysis are conduc

Author

Miljana Ristić

Language

EN