A woman whose street was hit by a landslip from a coal tip has described slurry running down the road carrying "trees and big ...

Excavation work is underway to put out an underground coal mine fire that’s been burning in Boulder County for decades. The ...

A smoldering coal seam in Boulder that state investigators ruled out as the most likely cause of the Marshall fire is being ...

Officials are hoping to mitigate the longstanding Marshall Coal Fire in Boulder County by mixing cool dirt with the ...