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N. America's Oldest Known Petroglyphs Discovered In Nevada

N. America's Oldest Known Petroglyphs Discovered In Nevada

NPR - Elizabeth Shogren

Ancient North Americans gouged elaborate rock art into a heap of big boulders northeast of Reno, Nev., more than 10,000 years ago and perhaps 15,000 years ago. That makes the carvings the oldest known petroglyphs on the continent, according to a paper published in the Journal of Archaeological …

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