The mountains south of Helena in Jefferson County are full of old holes in the ground, places where men once drove shafts and drifts through the rock in pursuit of silver, lead, zinc, and gold. Most of these workings are forgotten now, their names surviving only in old assay records and county histories. Comet is not forgotten, partly because its mine was the richest in its district and partly because the town that grew up around it lasted long enough to leave a substantial physical record, and that record is still there to be read.

The Comet Mine was developed in 1883 by the Helena and Livingston Smelting and Reduction Company, which recognized the potential of the ore deposits in the High Ore Creek drainage and moved to exploit them on an industrial scale. The mine was a hard-rock operation from the beginning, driving a shaft that eventually reached nine hundred and sixty-five feet below the surface, following veins of silver, lead, zinc, copper, and gold through the mountain. The ore was complex, carrying multiple metals in varying proportions, which made it both valuable and technically demanding to process.

The town of Comet grew up around the mine on the eastern slope of the mountains, at an elevation that made the winters long and the summers brief. At its peak, the community numbered around three hundred residents, all of them connected in one way or another to the work of the mine. There was a hotel, the Dailey Hotel, which served the miners and the occasional traveler who found his way into this remote corner of Jefferson County. There were the usual commercial establishments of a mining camp: a general store, a saloon or two, the boarding houses where single men ate and slept between shifts. The mine ran a flotation mill on the hillside above the town, a substantial industrial structure that processed the ore before it was shipped out.

The Comet Mine was the most profitable operation in its district by a considerable margin. Its total production reached at least twenty million dollars in silver, gold, copper, lead, and zinc, roughly ten times the output of the nearby Gray Eagle Mine on Bishop Creek. These were not trivial figures; they represented decades of sustained extraction from a deposit that proved richer and more durable than most.

The mine's first major period of activity ran from its founding in 1883 through the early years of the twentieth century. By 1913, the combination of declining ore grades and falling metal prices had reduced Comet to something close to a ghost town, its population dispersed and its commercial life contracted to almost nothing. The buildings stood, and a few people remained, but the energy that had built the place was gone.

The revival came in 1926, when the Basin Montana Tunnel Company acquired both the Comet Mine and the adjacent Gray Eagle Mine and undertook a new program of development. The tunnel company's approach was to drive a long drainage and access tunnel that would allow the lower levels of the mine to be worked without the constant expense of pumping out groundwater, which had become one of the principal obstacles to profitable operation. The effort brought new workers to Comet and gave the town a second life, modest compared to its first but real enough.

Mining operations continued under various owners until 1941, when most of the equipment was sold and the remaining residents departed. The timing was not coincidental: the onset of World War II redirected both labor and materials away from non-essential mining, and the Comet Mine, which had been operating on thin margins, could not survive the disruption.

The mine's final years were marked by a tragedy that gave Comet a place in the darker record of Montana mining history. On October 13, 1941, a fire broke out in the mine workings, trapping men underground and killing several workers before the blaze could be brought under control. The disaster was one of the last significant events in the mine's operational life, and it cast a shadow over the final months before the equipment was sold and the town emptied out. The names of the men who died in the fire are not widely remembered today, which is the common fate of working men who died in the ordinary course of extracting wealth from the earth.

After 1941, Comet was a ghost town in the permanent sense, a place that had been abandoned rather than merely paused. The buildings remained, and the mine workings remained, but the community that had given them purpose was gone. The mountain held its silence, as mountains do.

The Comet Mine's long life, from 1883 to 1941, made it unusual among Jefferson County operations. Most of the smaller mines in the High Ore Creek drainage had exhausted their ore bodies and closed by the early twentieth century. Comet kept going through two distinct phases of activity, separated by a decade of near-dormancy, because the ore body was genuinely large and because the Basin Montana Tunnel Company's engineering solution to the groundwater problem extended the mine's economic life by a generation. The 1941 fire was not the cause of the closure so much as the final event in a decline that had been underway for years.

What Remains Today

Comet retains some of the largest intact mining facilities in Jefferson County outside of the Butte area. The mill building on the hillside is the most prominent surviving structure, a substantial frame construction that has weathered the decades in recognizable form. The mine entrance, the mine car route connecting the workings to the mill, and the pump house are all present and accessible. The Dailey Hotel, or what remains of it, stands near the center of the old townsite.

The site is on private land, and visitors should be aware of property boundaries. The structures are not stabilized and are in varying states of decay; caution is warranted around any of the mine openings or deteriorating buildings.

Visiting

Comet is located approximately twenty miles south of Helena in Jefferson County, in the High Ore Creek drainage. The access road is unpaved and requires a vehicle with reasonable clearance. The site is best visited in summer and early fall. Because the property is privately held, visitors should confirm access conditions before making the trip.

The nearest services are in Basin, a small community on Interstate 15 approximately ten miles to the west.