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04-02-2017
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Will the faces of my rushmore wear away in my lifetime

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Аноним Аноним

04-02-2017

Definitely not. Mount Rushmore is granite so it erodes roughly 1 inch every 10,000 years. In 500,000 years it is predicted that the face would lose some of their definition, but Mount Rushmore could last for 7 MILLION years

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