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Bureau of Land Management Appendices <br /> Royal Gorge Field Office DOI-BLM-CO-F020-2020-0036 EA <br /> waste rock the pit will be removed prior to and separately <br /> generation from extracting obsidian. <br /> The stripping, grading, and placement of <br /> overburden and topsoil will be performed during Dependent <br /> early stages of the mine development. Slopes on <br /> k. Grading plan will be established to not exceed 2H:IV,for N N N information <br /> long-term stability,erosion control, and ability provided in <br /> to be revegetated. More level areas(such as the 2e <br /> pad in the pit and processing area)will be graded <br /> to allow drainage; all drainage will be controlled <br /> It is estimated that approximately 20,000 cubic <br /> yards of overburden will be stripped from above <br /> 1. Excavation, the ore deposit to be mined. Of that total, <br /> stockpiling and approximately 10,000 cubic yards will be needed <br /> earthwork balance for construction of the expanded operations pad, N N N for surface new processing area, and additional stormwater <br /> structures control structures. The balance of the <br /> overburden (excess)will be hauled to the <br /> disposal cells. <br /> In. <br /> Geochemistry of <br /> Ore, Waste Rock N/A - <br /> and Peripheral <br /> Rock, if potential <br /> concern <br /> n. Mine There will be no backfilling of the pit. Slopes <br /> backfill, as will be mined at each level to their final N N N - <br /> applicable configuration. <br /> o. Treatment <br /> and Containment N/A - - <br /> Plan for Mine <br /> Related Material <br /> A-15 <br />