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6.4.4(a) <br /> The majority of this site and all bedrock material will be mined using drill and blast techniques. <br /> In general, each new mining phase will be mined by first excavating vegetation and 0-24 inches <br /> of decomposed plant material ("forest litter") and sandy loam with front-end loaders, excavators, <br /> and bulldozers from the first horizontal bench. <br /> After forest litter and sandy loam surface horizons are removed, the underlying metamorphic <br /> bedrock and previously exposed cliff faces will be drilled and blasted to a specified rough sized <br /> product (an average size of 3-foot minus), transported to the onsite processing area,processed, <br /> and sorted. Each subsequent bench will be stripped just in time to create the new working bench. <br /> The initial processing area will be created by filling the drainage southwest and adjacent to the <br /> mine site entrance off the CCP. Fill will be composed of initial stripped material from the start of <br /> Phase 1 mining. Whole trees stripped prior to mining will be used to provide mulchy growth <br /> medium, as possible. The processing area will include a portable crushing and screening plant, <br /> material stockpiling, fuel tanks, truck scales, main office, and related structures (Map C-2). At <br /> the crushing and screening plant, various sizes of product will be created and sorted into separate <br /> stockpiles. As equipment and stockpiles will be extremely portable throughout this time, such <br /> associated structures are not shown on Map C-2. <br /> Mining will occur in five phases; Table 1 details expected rates, tonnage, and disturbance by <br /> phase. Phases will begin with initial mining and the creation of the site processing area as Phase <br /> 1 (Map C-3), followed by mining Phase 2 to elevation 8275' (Map C-4). Phase 3 will mine <br /> further down to elevation 8050' (Map C-5). Phase 4 will finish at elevation 7925' where a central <br /> mine access road will be created to convey equipment and materials from the eastern side of the <br /> quarry to the west half of the site (Map C-6). This central and internal mine access road may be <br /> converted into a realigned CCP at the sole discretion of Central City; realignment of the CCP is <br /> further discussed later in Exhibit D. Phase 5 will finish the quarry from the west side creating a <br /> uniform final elevation of 7850' excepting the central mine access road (Map C-7). <br /> Young Ranch Resource <br /> December 2021 D-0 Lewicki&Associates <br />