SALT LAKE CITY (CN) - Operators of the Crandall Canyon Mine engaged in risky "retreat mining," causing a coal blast that trapped and killed six miners, and three rescuers also were killed and six ...

WHARTON, W.Va. - The two workers killed in an underground coal mine were performing a risky method known as retreat mining, where the roof is intentionally collapsed to retrieve more coal. Retreat ...

The method of mining used at the Utah mine that collapsed Monday, trapping six miners, has a history of being disproportionately deadly, according to federal safety studies. The Crandall Canyon mine ...

As frustration mounts over the slow pace of the digging to free six trapped miners, more questions arose Tuesday about whether risky mining methods may have left parts of the coal mine dangerously ...

Layers of rock overhead rumble like thunder, dirt and pebbles rain down. What is a miner to do? "You run for your life," said Tim Miller, who toiled in Kentucky's mines for more than two decades.

As frustration mounts over the slow pace of the digging to free six trapped miners, more questions arose Tuesday about whether risky mining methods may have left parts of the coal mine dangerously ...

Coal mining company Genwal Resources has pleaded guilty to corporate criminal charges stemming from the 2007 Crandall Canyon mine collapse in Utah that left nine miners and rescuers dead. Federal ...