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EXHIBIT D MINING PLAN <br /> 1. General Mining Plan <br /> Map C-1 shows the current conditions of the Bradford Mesa Quarry. Mine access is via <br /> Edmundson Ranch lands fed from County Road 120. The site is bound by fencing along the <br /> western and southern edges. Prior to disturbance the northern and eastern boundaries will be <br /> staked and signed. <br /> The geologic unit to be mined is an Eocene diabase (basalt) sill that ranges in thickness from 5 to <br /> 25 feet with the thickest wedge of the unit approximately located through the center of Bradford <br /> Mesa. The sill intruded the Cretaceous Pierre Shale and currently acts as a cap rock for the brittle <br /> underlying shale slopes. In areas where northeast trending dikes intruded into the Pierre Shale <br /> and where the shale is in contact with the dike, contact metamorphism deformed the shale into <br /> localized slate. <br /> The site was previously awarded a DRMS permit(M-2009-003)to the operator Impact <br /> Investments in August, 2009. However, no mining occurred at the site due to market conditions. <br /> Site exploration at this time included core hole drilling in four locations, see Maps C-1 and C-2 <br /> for core hole locations. Additionally, 19 test pits were dug prior to 2009 to determine the depth <br /> of overburden and ripability of shale and intermittent slate. Borings indicate the sill plane varies <br /> in thickness from 5 to 25 feet and dips to the southwest at a 3-5%grade(Figure 1). <br /> Bradford Mesa Quarry r.,cg I—kki and As—ia«x PLLC <br /> August 2019 D-1 <br />