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Underground coal fire burning near Boulder for 100 years is now out
the Marshall site raised questions following the Marshall Fire in 2021, which destroyed more than one thousand homes. The coal seam fire has never been proven as a contributing cause to the ...
9NEWS1mon
Coal fire mitigation work complete at Marshall Mesa Trailhead
BOULDER COUNTY, Colo. — Crews have completed work to address burning and smoldering coal in an underground coal mine that has been closed for nearly 100 years. The Marshall Mesa Trailhead site ...
Yahoo News1mon
Underground coal fire burning near Boulder for 100 years is now out
However, the Marshall site raised questions following the Marshall Fire in 2021, which destroyed more than one thousand homes. The coal seam fire has never been proven as a contributing cause to the ...