When surface drills were moved farther north to follow the trend of the deposit worked out from underground drilling, the first hole hit ore at about the 750-ft level. Subsequent drilling followed the deposit down plunge to the 2,200-ft level.
Today, proven reserves stand at 2.6 million tons grading 4.1% zinc, 1.51% copper, 0.055 oz gold and 0.66 oz silver per ton. There are also substantial probable and possible reserves as well.
Another drift, this one on the 2,210-ft level, is being driven toward the deposit and a third, on the 2,750-ft level, is planned. High-speed rail haulage will likely be established on the 2,750 level by the fourth quarter of 1989, says Alastair Walker, vice-president of exploration. Mining rates will be in the order of 2,000 tons per day. Callinan Fact Sheet Location: ……… Flin Flon, Man. Major owners: ……… Hudson Bay Mining & Smelting (51%), Manitoba Mineral Res. (49%), and Consolidated Callinan Flin Flon Mines (6 2/3% NPI). Operator: ……… Hudson Bay Reserves and category: ……… Proven reserves of 2.6 million tons grading 4.1% zinc, 1.51% copper, 0.055 oz gold and 0.66 oz silver per ton. Metal(s) to be produced: ……… Copper, zinc, gold, silver Discovery date: ……… 1984 Production decision: ……… 1987 Start-up date: ……… Last quarter, 1989 (commercial production) Budgeted capital costs: ……… N/A Actual capital costs: ……… N/A Cash operating costs: ……… N/A Means of access: ……… Drifts from Flin Flon mine Extent of horizontal workings: ……… Three main levels at 1,690 ft, 2,210 ft and 2,750 ft (main haulageway) Mining method: ……… Cut-and-fill Mining equipment: ……… Track haulage, trackless ore extraction Production rate: ……… 2,000 tons per day (peak rate) Milling: ……… Flin Flon mill (Hudson Bay circuit) Major contractors: ……… Development by Hudson Bay Current status: ……… Pre-production
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