Bolivia's Cerro Rico mountain was once said to contain enough silver to build a bridge between South America and Spain. Catharina Moh reports on its collapsing, which threatens the lives of the thousands of miners who work there.
Bolivia's Cerro Rico mountain was once said to contain enough silver to build a bridge between South America and Spain. Catharina Moh reports on its collapsing, which threatens the lives of the thousands of miners who work there.
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