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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-1 <br /> features the Reclamation plan; all maps are located in Appendix 2. Contours within mining <br /> phases are shown as baseline contours on Map C-2; however, contours will smooth to those <br /> presented on Map F-1 for reclamation and are not detailed as exact mining contours on Map C-2 <br /> as reclamation will occur concurrently with mining thus mitigating the lack of known true <br /> mining contours. <br /> Bradford Mesa QuarryA. ; t�tAsk;atr„{,n: <br /> August 2019 D-3 <br />