A Colombian sand miner works on the reinforcement of the bank of the river La Vieja in Cartago, Colombia, 15 April 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 searching for sand by feet, or,...more »
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Date > 15 Apr 2013
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