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The Doyon Mine, located 35 kilometres east of Rouyn-Noranda, is a joint property held by Cambior Inc. and LAC Minerals Ltd., the latter being the operator.

Gold mineralization was discovered in 1973 as a result of a joint venture exploration between SOQUEM and Silverstack Ltd. Production started at the end of 1979 with the first load of ore shipped to the East Malartic mill on February 1980.

Production statistics, as of January 1st 1990, are 1 0.3Mt ore milled, grading 5.9 g/t Au. Current mining rate is 1,1 Million tonnes (Mt) per year which represents a daily production of 3 000 tonnes (mT). Recovery todate has been 93.0% with 57 016 kg (1 833 000 oz) Au produced.

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