Miners know the risks of working dozens of metres below ground but still work to extract coal to support their families.
Deep underground, Mexican coal miners remember those who never came back
Naica's crystal cave captivates chemists
Stone cold killers - 11 of the world's most dangerous minerals - Mining Technology
Where Did the Taco Come From?, Arts & Culture
Grupo Mexico says sees no risk from govt mining reforms
Lost bones, dreams and water: Life and death at the foot of one of the world's biggest coal mines
Mexican mining industry under threat from sweeping new regulations
Mexico's coal miners risk their lives to earn a living, Mining
Ten Mexican miners remain trapped in coal mine after three rescued
How a US mining firm sued Mexico for billions – for trying to protect its own seabed, Oceans