At the top of Ijen volcano in Indonesia, it was discovered sulfur deposits in 1968.. About 200 miners, known as "slaves of sulfur," work here every day and are 70-90 kg of sulfur in their baskets to the bottom of the crater. Normal daily earnings of these miners is about $ 5, and the average duration of their life - 30 years. For reference, there is also a video, and here you can see a few photos.
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