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This pestle and mortar were found in a California tunnel. They were discovered at a distance of 1,400-1,500 feet from the mouth of the tunnel, or 200-300 feet beyond the edge of the solid lava. It was impossible for these relics to have reached the location which they were found excepting at the time the gravel was deposited, and before the lava cap formed. The position of these artifacts in gravel close to the bedrock indicates they were 33-55 million-years-old. Grazing and carnivorous mammals had not been evolved on Earth at this time. So who brought and left behind these artifacts nearly 50 million years ago?  

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Originally posted 2017-12-17 19:54:18.