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Surface gold mining in NW Bolivia: Hundreds of cooperatives are running small-to-medium-scale strip mines that churn through the surface of the Apolobamba protected area. @Thomas__Graham/1474022377914875917
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By contrast, here's my talk on how large-scale mining works in the Andes… Video: youtube.com/watch?v=39OdBsNe9lE
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And a thread on how it's financed: @CarwilBJ/1379905414733651975