Authorities say 20 others were injured in southwestern town of Ouray.
OURAY, Colo. — Authorities are trying to determine exactly what sort of accident occurred in a mine in southwestern Colorado that left two miners dead of carbon monoxide poisoning.
Ouray County officials say they’ve ruled out an explosion and mine collapse as the cause of the incident at the Revenue-Virginius mine Sunday morning.
Both the Montrose Daily Press and The Denver Post reported that investigators are looking at whether a blast on Saturday may have played a role. Federal mining regulators will be investigating.
The miners who died were identified as 34-year-old Nick Cappanno of Montrose and 59-year-old Rick Williams of Durango.
Nineteen other miners were taken to the hospital but only four were admitted. They were listed in fair condition.