The Sunshine Mine Fire: The Worst Day in Hard-Rock Mining

On the morning of May second, nineteen seventy-two, a fire started somewhere in the lower workings of the Sunshine Mine near Kellogg, Idaho, the deepest silver mine in the United States. The exact point of origin was never definitively established. What happened next was.

The mine's ventilation system, designed to move air through miles of underground tunnels, became the mechanism by which the fire's smoke and carbon monoxide reached the men working at depth. At peak operation, more than two hundred miners were underground in the Sunshine that morning. The fire's smoke traveled through the ventilation network faster than evacuation could occur. Ninety-one men died. It remains the worst hard-rock mining disaster in American history.

Two miners, Tom Wilkinson and Ron Flory, survived for seven days underground in a sealed pocket of clean air before being brought out alive. Their survival was a detail the rescue teams held onto through the days of increasingly grim recoveries elsewhere in the mine.

The Sunshine Mine disaster prompted federal hearings and changes to underground mine ventilation and fire-response regulations. The Federal Mine Safety and Health Act of nineteen seventy-seven, which strengthened enforcement authority over mine safety nationally, drew partly on the lessons of the Sunshine fire and other disasters of the preceding decade.

A memorial at the mine site honors the ninety-one men who did not come up. Their names are documented. The Silver Valley community that depended on the mines absorbed the loss in the way mining communities absorb such things: it continued. The Sunshine Mine operated until two thousand one, nearly thirty years after the fire that killed a third of a year's workforce in a single morning.