08 May 2017 16:36 IST

Making a living in dust and darkness

A view of the dangerous life of coal miners

"In 1942, Office of War Information photographer John Collier visited the Montour No 4 Mine of the Pittsburgh Coal Company in Washington County, Pennsylvania. Montour No 4 was a mine for bituminous coal, one of the most volatile forms, requiring the miners to vigilantly monitor for the presence of flammable gases. Collier followed the miners as they moved underground through the near-horizontal drift mine, laying track for machinery, drilling and blasting with dynamite, all the while maintaining caution for possible collapses or explosions," reads this slideshow in Mashable.

The photographs show the gritty life that the miners led. Click to see the pictures.