Water Stewardship Information Sources

ID 1720
Citation Christensen, K., G.R. Connaughton and P. Ogryzlo (2016) Technical report on the main zone optimization Huckleberry Mine, Omineca Mining Division, British Columbia, Canada. Prepared for Huckleberry Mines Ltd. and Imperial Metals Corporation. November 22, 2011. The effective date of the exploration data is September 1, 2011. Amended May 11, 2016.
Organization Huckleberry Mines Ltd.; Imperial Metals Corporation
URL https://www.imperialmetals.com/assets/docs/2016-hml-43-101-technical-report-on-the-main-zone-optimization.pdf
Abstract/Description or Keywords The Huckleberry Mine is located in Central British Columbia, Canada. The mine is owned one hundred per cent by Huckleberry Mines Ltd. (Huckleberry, HML), whose ownership is in turn shared between Imperial Metals Corporation (Imperial) and the Japan Group, a consortium formed of Mitsubishi Materials Corporation, Marubeni Corporation, Furukawa Co. and Dowa Mining Co. Ltd. The mine produces copper and molybdenum, with accessory but lesser quantities of silver and gold from an open pit mine-mill complex. Production started in 1997 and is continuing at a rate of approximately 16,000 tonnes per day at the time of preparation of this report. The minerals are won from porphyry copper - molybdenum deposits located on the southern slopes of Huckleberry Mountain. Operations were scheduled to wind down in 2007-2008. However, development of resources near the backfilled Main Zone Pit has extended the mine life to 2014. Continued exploration below and around the Main Zone Pit led to the development of a Measured plus Indicated mineral resource containing 180.7 million tonnes with grades of 0.315 % copper and 0.006% molybdenum. Not included in these categories is an Inferred mineral resource of 48.0 million tonnes with grades of 0.263% copper and 0.003% molybdenum. Details on the classification of this resource may be viewed below in Section 14 of this report. Within this mineralized resource, the operators have defined resources of 39.7 million tonnes at a grade of 0.343% copper and 0.009% molybdenum using a 0.20% copper cutoff grade. These resources are contained within a pit shell known as the Main Zone Optimization (MZO) Pit. The development of these resources into reserves, and the feasibility of extracting them from the MZO pit are the subject of this technical report.
Information Type Report
Regional Watershed Nechako River
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