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  IMGP1947-Edit-Edit.jpg - Originally, salt was mined by digging out rocks laden with salt, carrying them to the surface, and then removing the salt.  After 1000 A.D., they learned to flood a cavern with water to remove the salt with less manual labor.   The tour includes a boat ride on an underground lake.  
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Originally, salt was mined by digging out rocks laden with salt, carrying them to the surface, and then removing the salt. After 1000 A.D., they learned to flood a cavern with water to remove the salt with less manual labor. The tour includes a boat ride on an underground lake.
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