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6.3.3 EXHIBIT C Mining Plan <br /> (a) Dates Mining will Commence and End <br /> This is a new application for a limestone mining operation located in Eagle County. <br /> The Quarry and associated access roads are proposed to be located northeast of Dotsero, <br /> Colorado. T4S, R86W, Section 34, 6th P.M. <br /> Mining operations will commence in the first or second quarter of 2020 subject to permit <br /> approval. The mining operation is not intended to be an intermittent operation. <br /> Defiance Stone has a 5-year Contract with the BLM for the Sale of Mineral Material. <br /> During the five year permit term the plan is to extract a total of 16,000 bank cubic yards of <br /> sandstone from the Quarry with 75%(12,000 bank cubic yards)as usable stone and 25% <br /> (4,000 bank cubic yards) as waste for reclamation. <br /> The mining operation will last 5 years unless BLM renews or renegotiates the sale of <br /> mineral materials with Defiance Stone in which case the mining operation will last 20 <br /> years. <br /> (b) Topsoil & Subsoil <br /> Brown Quarry <br /> Topsoil depth approximately 6 inches <br /> Subsoil depth approximately 0 inches <br /> All available topsoil and any subsoil encountered will be salvaged and stockpiled at the <br /> Quarry. <br /> Topsoil will be stockpiled completely separate from subsoil so that the two will not be <br /> mixed during reclamation. Topsoil stockpiles that are to remain in place for more than <br /> ninety days will be seeded as soon as practical. Berms will be constructed around the base <br /> of stockpiles where necessary to prevent loss of topsoil material from the stockpiles. <br /> Topsoil and subsoil stockpiles will be located separate from other stockpiles, out of the <br /> way of mine traffic and out of stream channels or drainageways. <br /> (c) Thickness of Overburden: There will not be any waste rock removed to reach the <br /> deposit. No overburden stockpiles or waste rock fills will be required. <br /> (d) Thickness of Deposits <br /> The Quarry will mine approx. eight feet of limestone steps. <br />