Tending to a below-ground fire is unlike fighting ones above ground.
PDF) The methane-air explosion hazard within coal mine gobs
CPR News Archives Colorado Public Radio
The hot, toxic, uphill battle against Colorado's underground fires, News
Investigators: Burning Remnants Of Underground Coal Mines Are Possible Cause Of Marshall Fire - CBS Colorado
The rising global interest in coal fires
PDF) Lessons learned from research about methane explosive gas zones in coal mine gobs
Colorado to start mitigating underground coal mine fire near Marshall Fire ignition point in Boulder County - CBS Colorado
Coal underground may have been burning for 150 years near where the Marshall Fire started northwest of Denver - Wildfire Today
Dangerous legacy: Tens of thousands of Coloradans live near one of the state's many underground coal-mine fires, Subscriber Content
Coal Seam Fires Burn Beneath Communities in Zimbabwe - Eos
The Coal Legacy that Led to Colorado's Most Destructive Fire
Deadly Colorado blaze renews focus on underground coal fires
Spontaneous combustion of coal seams in the Bengiler coal mine in Turkey
