An underground mine fire in the borough of Centralia in Columbia County started burning on May 27, 1962.
Firefighters had set the town landfill on fire to clean it up for the Memorial Day holiday.
The fire spread to an old strip mining pit under the landfill. The fire eventually spread under the town and the state began a voluntary relocation of residents in 1983.
Seven residents who remained there in 2013 were permitted to stay in their homes until they die.
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