Now customers want to watch over coal mines, construction sites, private yachts, neighborhood bars, even forests.
The mine's owner, Western United Mines (WUM), employs about 50 people at the site near Camborne.
Despite completing university, he was looking for work in the mines to be able support his family.
And he insisted that Japan needs to keep land mines to deter possible attacks on the country's coastline.
Fortuna Silver Mines Inc shares are currently trading down about 6.3% on the day.
For a company with an unusual way of treating its workers, any acquisition has land mines.
Steelmakers, coal mines and electricity generators will receive compensation to ensure they stay in business.
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South African mines and farms have long employed workers from Lesotho, Malawi or Zimbabwe.
Freeport has been ramping up operations at its underground mines amid declining surface production.
Muscles and physical stamina were required for jobs in the steel mills and copper mines.
The troops are also prepared for the dangers posed by land mines planted during the war.
International Tower Hill Mines Ltd shares are currently trading down about 6.4% on the day.
The 76-carat Archduke Joseph diamond, described as internally flawless, comes from India's famous Golconda mines.
Freeport reported copper sales from mines during the third quarter were 922 million pounds.
Eisenhower and George Patton surrounded by Nazi plunder inside the Merkers, German salt mines.
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There's even a rust-colored, iron-rich sodium from Tibet, hauled out of salt mines by yaks.
International Tower Hill Mines Ltd shares are currently trading down about 25.1% on the day.
In protest the United Mine Workers of America struck at mines run by Blankenship.
India banned commercial coal mining by private companies in the 70s when it nationalized all mines.
The company even branched out into gold mines (Gandur is chairman of Toronto-listed Axmin).
The new decrees would impose sentences of as much as 10 years for operating illegal mines.
Locals blamed earthquakes, local salt mines, an underground river and wind turbines in the past.
Fortuna Silver Mines Inc shares are currently trading off about 0.8% on the day.
Instead of killing canaries in mines, we now use sensors to detect problems and alert people.
When the coal mines dried up in the 1950s, Shenandoah began its economic slide.
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It does not pay for any ongoing capital or exploration costs at the mines.
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Almost two-thirds of the dump trucks used at Chinese mines are made by the Tokyo company.
Other mines are still inaccessible, and several rail lines are still submerged or damaged.
International Tower Hill Mines Ltd shares are currently trading down about 4.2% on the day.
This especially harsh winter has forced more than 12 copper mines to slow or halt operations.
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