Arch Coal reopens Utah mine after sealing off section that caught fire

Utah coal mine reopens after fire quarantined

WELLINGTON, Utah — Arch Coal Co. has reopened a Utah coal mine after closing off a section that caught fire.

St. Louis-based Arch Coal shut down the Dugout Mine for nearly three weeks to deal with rising levels of deadly carbon monoxide from the smoldering fire.

The company says it removed water pumps and left the section at the mine to flood.

The company believes a chemical reaction likely caused a coal seam to ignite, but it didn’t produce any open flames.

Arch Coal spokeswoman Kim Link says the mine reopened late last week.