GUATEMALA CITY — A torrent of gray, toxic water spews from a drainage tunnel and surges along the ravine, tumbling along garbage that has fallen from the Guatemalan capital's main landfill 1,000 feet  above.

Despite the foul odors, the danger of unstable piles of garbage collapsing and the chance for heavy rain to suddenly raise the water level, dozens of people are busily at work searching for jewelry and other metal scraps knocked loose from the trash.

They call the ravine the "mine," and refer to themselves as "miners."

Every day, about 300 hike to the bottom of the ravine and wade into the water in search of rings and bracelets made of silver or gold. The water sifts and carries away the lighter garbage, leaving heavy metals on the stream bed. READ MORE HERE