MacArthur Project, Yerington, Nevada (Copper)
The MacArthur copper mine is located in a world-class copper district in western Nevada, 50 miles southeast of Reno. Known global resources in this prolific district exceed 2.1 billion tons averaging 0.34% copper. Several additional known resources can be found in the surrounding area - most notably the Bear Deposit, Pumpkin Hollow and Ann Mason deposits.
Located in the heart of the Yerington-MacArthur copper district, the MacArthur copper mine is a stand-alone, fully-stripped copper oxide deposit with potential for expansion. Since 2007, 120,389 feet of drilling has been completed demonstrating MacArthur to be a low-cost, open pit, run-of-mine, heap leach project with a short timeline to production.
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An updated NI43-101 shows that MacArthur is an extremely large, low-grade deposit that remains open to expansion. The shallow mineralization and favorable topography, combined with available resources and infrastructure are factors that could lead to the development of a near-term heap leach operation.
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MACARTHUR COPPER PROJECT: December 2010 |
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Cutoff Grade |
Tons |
Average Grade |
Contained Copper |
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Measured and Indicated |
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Oxide and Chalcocite |
0.12 |
143,721 |
0.192 |
551,601 |
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Primary Material |
0.15 |
1,448 |
0.218 |
6,325 |
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Inferred |
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Oxide and Chalcocite |
0.12 |
215,043 |
0.197 |
846,839 |
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Primary Material |
0.15 |
74,090 |
0.256 |
379,489 |
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