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EXHIBIT D: MINING PLAN <br />1. General Mining Plan <br />Historically, the deposit was mined utilizing deep vertical galleries (underground) accessed from the <br />outcrop as shown in Figure 2. Little to no explosives have been used for the mining with the <br />exception of the development of Tunnel #5, Portal #4 and the Utility Portal. Marble is cut utilizing <br />rock saws and wire saws. This method minimized the damage to the marble during excavation. The <br />historic deep vertical galleries combine to form the Washington Gallery (Portals #1-4). The <br />Washington Gallery (Figure 3) was mined until Mid -2015 when it was closed as operations <br />transferred to the Lincoln Gallery. <br />Figure 2- Historic Photo of Portal #3 of the Washington Gallery <br />The Pride of America DRMS 112c Exhibit D - 1 <br />12/23/15 <br />