Oldest salt well harnesses 2,000-year-old method in SW China
    

    


    By Yao Yao    |    chinadaily.com.cn    |     2017-04-26 11:00
    



 


    


    

    


    



    

    

    


    


    
Oldest salt well harnesses 2,000-year-old method in SW China

    


    


    A worker filters and purifies the brine at the Shenhai salt well in Da'an district, Zigong city, Southwest China's Sichuan province, on April 25, 2017. [Photo by TG/ provided to chinadaily.com.cn]
    
    		

    
    

    

    


    

    

    




    

    

    




    



    


    

    


    

    


    

    

    
 


    

    


    

    

    



    

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