The Giant Mine was a large gold mine located at Yellowknife, Northwest Territories. Gold was discovered on the property in 1935 by Johnny Baker, but the true extent of the gold deposits were not known until 1944 when a massive gold-bearing shear zone was uncovered beneath the drift-filled Baker Creek Valley. The discovery led to a massive post-war staking boom in Yellowknife. Giant Mine entered production in 1948 and ceased operations in 2004. It produced over 7,000,000 ozt (220,000 kg) of gold.
On September 18, 1992, at the height of a labour dispute, an explosion in a drift of the mine, 750 ft (230 m) underground, killed nine strikebreakers and replacement workers riding in a man-car. Mine employee Roger Warren was later convicted of placing the bomb. The strike/lockout ended in 1993, pursuant to an order by the (then) Canada Labour Relations Board.
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