Add Yahoo as a preferred source to see more of our stories on Google. BOULDER COUNTY, Colo. (KDVR) — A fire that has been burning for more than a century in Boulder County has been extinguished.

Centralia, Pennsylvania has been on fire for more than 60 years, and will likely continue to burn for decades more. Why?

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." No town in the U.S. has been so drastically impacted by the fortunes and follies of what lies beneath it ...

The state announced Thursday the completion of a nearly year-long effort to extinguish a burning pile of century-old coal mining debris near Florence. The pile of rock, dirt and low-quality coal began ...

A hidden fire that has been burning underground near Meeker since the 1930s is now hot enough that state crews are racing to stop it from sparking a wildfire above ground.