Colorado blaze might have been ignited by 140 year coal mine fire

FILE - Rowdy Alexander watches from atop his horse as a hillside burns on the Northern Cheyenne Indian Reservation on Aug 11, 2021, near Lame Deer, Mont. An area outside Denver where Colorado's most destructive in history wildfire burned 1,000 homes last month is home to numerous abandoned coal mines that authorities say could be a potential cause of the wind-driven wildfire. This past summer in Montana, smoldering coal seams were blamed for a string of major fires that burned hundreds of square miles and prompted widespread evacuations. (AP Photo/Matthew Brown, File)

 

Investigators in Colorado now suspect an underground coal mine fire that has been burning since 1883 might have sparked last month’s deadly fire that also consumed more than 1,000 homes near Boulder.

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