Mining activity ceased at the site in the early 1900’s, but the coal still left in the ground has been burning ever since. Previous coverage: Work begins to mitigate decades-old underground fire in ...
And, hopefully, a 100-year-old underground fire will breathe its last because the coal will be busted apart and smothered with dirt, reducing the potential for combustion. "It's really difficult ...
BOULDER COUNTY, Colo. — Poofs of smoke and coal ash wafted from a 30-foot pit on Marshall Mesa as an excavator the size of a small house scooped dirt and coal out of the ground. The excavator ...