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Americas' oldest mine now identified

Valentina Ruiz Leotaud | May 22, 2022 | 6:06 am Education News Suppliers & Equipment USA Specialty Minerals 

Recent archaeological excavations have confirmed that an ancient mine in eastern Wyoming was used by humans to produce red ocher beginning nearly 13,000 years ago. According to the researchers behind the discovery, this makes the Powars II site at Sunrise...

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