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<br />Cripple Creek & Victor Gold Mining Company Exhibit D Cresson Project Amendment 13 14 <br />Design Sector <br />Recommended Inter-ramp Slope Angle Mining Area Design Control <br />Design Parameters 1,2 <br />Comments Bench (S/D) <br />Mean Catch-Bench Width (ft) <br />Mean Bench-Face Angle <br />13 40° WHEX portion of North Cresson Bench D 57.9 70° <br />14 45° WHEX portion of North Cresson Bench D 44.5 70° <br />Notes: 1. Slopes should be designed and excavated to the mean catch-bench widths and bench-face angles listed above. After excavation, back break along the bench crests will reduce the catch-bench widths to the required 80 percent reliability of achieving 26 feet for double benching and 19 feet for single benching for sectors controlled by back break. 2. A mid-bench offset of 8 feet was assumed for double benching based on previous experience at Cripple Creek. If the offset created between benches during mining is greater than 8 feet, inadequate catch-bench widths will be achieved. The offset can be completely avoided by drilling the pre-split row the full double bench height in a single pass. 3. Slopes mined in dump, fill, colluvium, or weathered material should be mined at a continuous 34° slope. <br />3.5 Loading, Hauling, and Selective Handling <br />Loading, hauling and selective handling of ore, ROM, and overburden at the surface operations will be consistent with the permitted process. After blasting and assaying, ore and overburden is designated in the field by the ore-grade control (mine) geologists. Higher grade ore for the HG Mill facilities is designated separately from ore destined for the VLFs. ROM is segregated and hauled directly to the lime/cement silo area where lime or cement is added before being placed on VLFs (as approved in TR-114). Blasted rock is loaded into haul trucks using either rubber tire dozers, front-end loaders or track mounted hydraulic shovels. Ore is hauled to the existing crusher facility, to the high-grade ore storage area, or the ROM stockpile area depending on the field designation. <br />Higher grade ore material mined from surface mine areas will be designated prior to blasting and, to the extent possible, separated and selectively hauled. The higher-grade ore material will be placed in the vicinity of the Main Cresson Mine area and campaigned in weekly batches through the crushing facilities to be fed to the HG Mill. <br />Overburden material is hauled from the mine areas to the ECOSA or hauled as backfill into the Main Cresson, East Cresson, or North Cresson Mine areas. Backfilling will occur in areas following the completion of the mining activities and may be completed concurrent to mining in the same area.