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MINING PLAN EXHIBIT D <br />1. General Mining Plan <br />The Cerise Mine will involve the disturbance of roughly 60 acres of sand and gravel from a <br />dryland terrace located 1.5 miles northeast of Carbondale, CO. Roughly 53 acres of ground will <br />be mined over the course of the operation, the remaining 7 acres consists of facilities, berms, and <br />other related disturbance. Mining will be conducted using dozers, scrapers, front -end loaders, <br />and haul trucks. The sand and gravel will processed through crushers, screens, and a wash plant. <br />The final products from the Cerise Mine will consist almost entirely of specifically sized rock for <br />use in construction projects. Concrete may be produced on site in the future under certain <br />conditions. <br />Mining will be conducted over the course of six phases. The first three phases (IA, 1B, & 1C) <br />will all have disturbance during the initial mining, and are therefore grouped (see Mining Map <br />1). The maximum disturbance area throughout the mine life will be 31.4 acres, during the mining <br />of Phase 3 (Mining Map 5). Reclamation will be concurrent with mining to keep this disturbance <br />area limited. Mining will take place to an approximate depth of 100 feet. Below the sand and <br />gravel deposit is the Eagle valley formation consisting of siltstone, shales, and evaporates. <br />Mining is not anticipated to ever reach the underlying geologic formations. <br />Processing equipment will be placed in Phase 1B initially, once the topsoil and overburden has <br />been stripped. Mining will be conducted in Phase IA initially, in a benching style down 25 feet <br />at a time. Once mining in Phase I has been completed to the first bench, stockpiles and <br />processing equipment will be moved into Phase IA to facilitate the mining of the first bench (25 <br />feet deep) of gravel in Phase 1B. This procedure will be repeated, transferring mining and <br />processing operations back and forth between Phase IA and 113 until reaching 6224' in <br />elevation, roughly 65 feet from the existing surface. See Mining Maps 1 and 2. <br />Mining of Phase 1 C will proceed in a similar bench fashion as previous phases, 25 vertical feet at <br />a time. Once mining in Phase 1 C reaches the same floor level Phase 1 B and 1 A, processing <br />equipment and stockpiles will be moved onto the Phase 1C floor to allow for mining of further <br />benches in Phase 1A and 113. Processing equipment and stockpiles will be replaced in Phase 1B <br />Cerise Mine March 2015 D -1 <br />