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Placer Dome Gold Mine – Musselwhite – North West Ontario

Producer of



500km north of Thunder Bay, Ontario, Canada


Goldcorp Inc. (68.1%), Kinross Gold (31.9%)

Geology type

Gold hosted in iron formations in Archaean greenstones

Mineral type

Disseminated native gold

Reserve base

11.1Mt grading 5.67g/t gold (proven and probable), containing 2Moz Au (2005)

Annual production

250,380oz Au (2005)

Mining method

Underground longhole stoping with backfill

Processing method

Crushing, grinding, primary gravity gold recovery, carbon-in-pulp leaching, electrowinning and gold refining


450 including contractors

Open pit

Caterpillar 773D haul trucks

Ingersoll-Rand IR-45 blasthole drill


Tamrock 650D remote-control LHDs

Tamrock 205D drilling jumbos

Tamrock Solo longhole drills

Teledyne and Toyota utility vehicles


Knelson gravity concentrator

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