DENVER (AP) Colorado coal production hit a 20-year low in 2013.
The industry has been hit hard by mine closures and a decline in demand for power-plant coal.
The Denver Post reports mines in Colorado produced 24 million tons of coal last year. That's a 17 percent decline from 2012 and down 41 percent from the 2004 peak.
Industry officials say the closure of the Elk Creek Mine in Paonia and the New Elk Mine in Trinidad accounted for about 60 percent of the drop.
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