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| Please wait http://ampland.fun/ ampland.com A white layer of carbonate made of limestone precipitated from the ancient overflowing Winnemucca Lake indicated the limestone boulders containing the petroglyphs were exposed to air between 14,800 and 13,200 years ago and again between about 11,300 and 10,500 years ago, they said. |
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2019-08-23 04:52:49 |
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