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The sill is estimated to be overlain by 0-12 inches of topsoil, variable depths of overburden <br /> ranging from 2 to 20 feet at its deepest areas, and/or variable thicknesses of Pierre Shale (Figure <br /> 2). Actual mining depth will reach 30 to 90 feet, but design slopes will remain constant. Mining <br /> will occur in phases that advance from south to northeast for the eastern area and from south to <br /> north in the western area. Map C-2 shows the Mining plan with projected phasing and F-I <br /> features the Reclamation plan; all maps are located in Appendix 2. General contours within <br /> mining phases are shown on Map C-2. Reclamation contours will reflect those presented on Map <br /> F-1. Exact contours on Maps C-2 and F-I are not detailed as mining and reclamation will occur <br /> concurrently and will mitigate the lack of known true mining contours. <br /> Bradford Mesa Quarry Cn*I.wiefu a.4 Auo—Wm PIA <br /> January 2020 D-3 <br />