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Screening Berm <br /> 6"seeded <br /> topsoil cap <br /> Central City 12 feet <br /> Parkway ti�`1� ?y.7� <br /> Processing Area surface <br /> topsoil or waste material <br /> Figure 2. Schematic typical cross-section of the processing area screening berm. <br /> Creation of the processing area by filling the drainage depression adjacent to the main site access <br /> road will occur prior to shipping commercial loads of material. During Phase 1, portable <br /> processing equipment will be utilized within the processing area and will move from time to time <br /> to optimize operations. Following the creation of the processing area pad and mobilization of <br /> processing equipment, the remainder of Phase 1 will be mined in vertical 25' benches (Figure 3, <br /> Map C-3). As the north facing slope adjacent to the processing area created during Phase 1 <br /> mining will be mined during Phase 3, the slope will not enter final reclamation but will instead <br /> be backfilled to a 2H:1 V slope and broadcast seeded with dry rangeland seed mix to stabilize the <br /> slope until Phase 3 mining begins. <br /> Phase 2 will be mined following the completion of Phase 1. The Phase 2 area will be mined <br /> vertically down from the top of the phase in nearly vertical 25' benches to create a final 2H:1 V <br /> slope (Figure 3). Features (e.g. rock outcrops) will be left on each mined bench as part of <br /> reclamation to create a `natural' rough surface. Areas not left as features will be backfilled and <br /> reclaimed prior to completion of mining in the bench below the reclaimed bench (Figure 3). <br /> Backfill will include waste fines generated on site. As part of the road cut, the wildlife crossing <br /> will be completed and the WC will be expanded north by —19.2 acres in the center of the site to <br /> its full extent of 100.2 acres. <br /> Phase 3 will mine two rock types: the overlying Neogene Boulder gravel and the underlying <br /> metamorphic bedrock(Figure 4, Figure 4Map C-5). When Phase 3 is mined, gravel will first be <br /> mined by dozer and/or front-end loader and will not require blasting. The exact timing of gravel <br /> Young Ranch Resource (;..y L�W;.ri and Aswcia(cv Yl.t.(' <br /> February 2020 D-6 <br />