A group of American visitors recently retraced a section of the "Shudao" road system that has endured for millennia across more than 1,000 kilometers of cliffs, rivers and forests in southwest China's Sichuan Province.
A group of American visitors recently retraced a section of the "Shudao" road system that has endured for millennia across more than 1,000 kilometers of cliffs, rivers and forests in southwest China's Sichuan Province.
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