PHIL HILL / SCIENCE PHOTO LIBRARY PHIL HILL / SCIENCE PHOTO LIBRARY
Artisanal mining. Worker with bags of gossan stones ready for processing. Iron in the stone has rusted on contact with the air, giving it a deep red colour. The presence of iron indicates the presence of other metals, including gold. The stone will be ground to extract these metals. Photographed in Macalder, Kenya.
Model release not available. Property release not required.