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The Myra Falls deposits of the Buttle Lake mining camp (49° 34ʹN, 125° 36ʹW) occur in Paleozoic Sicker Group rocks of Vancouver Island, within the Wrangellia allochthonous terrane of the Insular Belt of the western Cordillera. The deposits are located at the south end of Buttle Lake, 90 kilometres by highway from Campbell River (Figure 20). The deposits include the past-producing Lynx and Myra orebodies, which were brought into production in 1967, and the producing H-W orebody and adjacent North Lens, discovered in 1979. In 1991 the Battle and Gap zones were discovered along strike and to the west of the H-W orebody and are scheduled to begin production in 1993. Proven and probable geological reserves as of January 1, 1993, are 12 516 300 tonnes grading 1.9 % copper, 0.5 % lead, 6.3 % zinc, 2.1 grams per tonne gold and 45.6 grams per tonne silver (Westmin Resources Limited Annual Report, 1992).

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