It involved the three huge mines known as 'La Gran Mineria' and three smaller operations.
Only a huge mine benefiting from economies of scale is feasible at Pebble, due to the low-grade character of the ore.
Nineteen huge mines were exploded simultaneously after they had been placed at the end of long tunnels under the German front lines.
The report authors observed that the metal stocks in society can serve as huge mines above ground.
As the plane sharply descends over green forest and huge open-pit mines, it is all Jonathan can do to hold back tears.
However, in the northwestern part of the city there is a huge hollow, a remnant of a former sand mine.
With the help of the World Bank, they have opened huge mines promising development.
Copper futures prices rose to their highest levels in seven months as two huge Chilean mines were closed.
However, one foreign businessman warned about the possibility of a nationalist backlash if a Chinese company wrests control of the huge mine.
In the mid-1980s a proposal surfaced to develop Windy Craggy peak into a huge open-pit mine.