Rice Lake Mine
The Rice Lake Mine was originally built in 1934 and remains a core part of operations. It reaches 5,500 feet below the surface along two shafts. The 4,050 foot A-shaft connects to a 5,000 foot railway crosscut which in turn connects to the 900 foot D-shaft and spiral ramp that descends another 760 feet.
The A-Shaft current has a capacity of approximately 12,000 tpd, although the Company anticipates this may be increased to 18,000 tpd with minimal capital expenditure.
Historically, various mining methods have been employed in the Rice Lake Mine, including shrinkage, panel, longhole and cut and fill. The main methods used today are the same as in the Hinge and 007 mines, relying primarily on longhole mining with some mechanized cut and fill. While ore is skipped to surface using A-Shaft, ramp development is the primary method for accessing new zones within the Rice Lake mine.
Operations in the Rice Lake mine are currently focussed on development in two main areas, on 16 and 26 Level:
The Rice Lake Mine contains reserves of 69,300 ounces (374,700 tons at 6.34 grams per ton), measured plus indicated resources [inclusive of reserves] of 235,400 ounces (996,500 tons at 8.10 grams per ton), and inferred resources total 488,500 ounces (1,709,800 tons at 9.8 grams per ton). The zone is open at depth below the lower mine level.
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