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final limits with the first slice, and mining the lower benches <br /> in several increments. This modified slice system may also be <br /> used on top of Bartlett Mountain on the north perimeter of the <br /> pit. <br /> Five primary haul roads will eventually serve the <br /> open pit operation. Two primary haul roads provide access to <br /> the Ceresco Ridge and Bartlett Mountain sides of the open pit, <br /> south and north accesses respectively. Various bench roads <br /> branch off from these two primary haul roads to provide direct <br /> access to the open pit benches or work areas . The Bartlett <br /> Mountain haul road will be extended to access and allow mining <br /> of the north perimeter of the open pit. A third primary haul <br /> road accesses the interior of the open pit and a fourth <br /> accesses a low grade ore stockpile and will eventually cross <br /> Highway 91 to access Robinson Tailing Pond for reclamation pur- <br /> poses. A fifth haul road will access lower McNulty Waste Rock <br /> Dump during 1980 and 1981 . <br /> Presently, runnoff water from the Open Pit operation <br /> flows into the Climax industrial water system. During 1980 a <br /> temporary settling pond will be constructed on the Bartlett <br /> Mountain side of the Open Pit. The pond will allow solids to <br /> settle from runoff water originating outside the north <br /> perimeter of the Open Pit. Since this settling pond eventually <br /> will be covered by the Low Grade Ore Stockpile , a permanent <br /> settling pond at the base of McNulty Gulch will be constructed <br /> in the near future to handle this same water plus water origi- <br /> nating on McNulty Waste Rock Dump. <br /> Due to subsidence from underground mining , unstable C <br /> rock and natural weathering over the mining life of the Open <br /> Pit, it is anticipated that 80%-100% of the pit surface will <br /> have a talus slope appearance . It would be only a matter of <br /> time for any remaining benches to visibly disappear due to rock <br /> weathering and sloughing . <br /> Primary drilling in ore and waste is by various <br /> drills. Ore and waste is loaded by 15-yard electric shovels <br /> into a fleet of 120-ton and 170-ton trucks for haulage to the <br /> a <br /> 2-4 <br />