Colombian sand miners unload buckets full of sand into their boat anchored in the middle of the river La Vieja in Cartago, Colombia, 8 February 2013. Artisanal (unmechanised) sand mining is an ancient mining technique used to obtain sand for construction purposes. Depending on the natural conditions (strength of the stream, depth of the river etc.), together with the sand miners' physical condition, the material is extracted in metal buckets, either by standing on the river bottom and...more »
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Date > 8 Feb 2013
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