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surface appears to be rip-rapped, the mulch value of such rocks is <br />.very great. It provides local, high moisture environments, shade <br />for seedlings, protection from drying winds, and a reduced loss of <br />soil moisture through evaporation. The operator plans on a final <br />soil surface that will have no more than about 30~ to 40% coverage <br />by rocks larger than 4 inches. Salvageable soil will be stripped <br />and stockpiled in the immediate area. Establishment of a soils <br />stockpile in the immediate area to be reclaimed will control the <br />cost of respreading. As excavation continues toward the east and <br />southeast, soil stockpiles will be established on the mine floor <br />as frequently as necessary. The latter stockpile locations are <br />not shovrn on the map because they are as yet undetermined. <br />Although the pit is to be mined in two stages, it is the <br />intention to minimize the disturbed area by clearing and stripping <br />only small areas as the mining front progresses to the east and <br />southeast. <br />Excavation will progress along a moving front from west to <br />east and southeast. As the height above floor level increases, <br />the mined faces will be relieved by benches. Plans call for <br />near-vertical faces of approximately 40 feet with benches of 15 <br />feet and 50 feet. Every third bench will be 50 feet wide. Thy <br />wider benches may be alternated between levels so as to create a <br />more irregular appearance. Bench heights and widths may have to <br />be adjusted es mining progresses because of geologic factors such <br />as joint systems, rock types, lateral variations and fracturing. <br />10 <br />