Currently, all eyes are on the state’s golden aspens — but there’s another glittering treasure hidden beneath the surface. Although many boom towns went bust well over a century ago, underground mine ...

Investigators are trying to determine what caused an elevator at a Colorado gold mine to malfunction, trapping adults and children below ground. One person died and 23 others were rescued Thursday at ...

Three million gallons of acidic mine drainage flooded into the Animas River basin 10 years ago, turning the southern Colorado river a mustard yellow and making international headlines. Caused by ...

On a recent weekday, mine manager Lee Fronapfel led a group of us, outfitted with headlamps and hard hats, down a pitch-black tunnel at the Edgar Experimental Mine in Idaho Springs. Back in the 1870s, ...