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Fifty million years ago the Green River Stone quarry site was a tropical freshwater lake teeming with fish, plants, and other animals.

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Over many millennia, the lakebed petrified into layer upon layer of fossil rich stone.

Each summer a crew from Green River Stone Company travels to the quarry in the high desert of southwestern Wyoming to collect its prehistoric treasures. To reach the fossil-rich stone they must first remove many tons of loose rock and shale with heavy equipment. As the crew gets closer to the fossil bearing layers, the stone is harvested with only hammers, chisels, and strong muscles.

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