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<br />reclamation of the areas mined. The Exhibit C map illustrates typical overburden <br />stockpile placement; however, additional piles may be created, and will necessarily <br />move, as the mining advances. <br />Natural of the Deposit <br />The material to be mined consists of a clay body located within what is <br />described by G.B. Richardson (1915, Description of the Castle Rock <br />Quadrangle, Colorado, U.S.G.S Atlas Folio No. 198) as the upper part of the <br />Dawson Formation. The thickness of the upper Dawson Formation in the area to be <br />mined is unknown. The rock units present on site, and immediately underlying the <br />area to be mined, consist of variegated arkosic conglomerate, sandstone and shale <br />that is interbedded with andesitic sandstone. Clay lenses occur throughout. The clay <br />will be used for the manufacture of brick at the company's plant located at Castle <br />Rock. The material overlies other sedimentary units of the lower Dawson Formation <br />which in turn overlie other sedimentary formations. <br />Mining Plan <br />It is planned that operations will begin on the southwest side of the site and <br />work in a general direction toward the north and east. The operation is expected to be <br />dry. Test borings drilled to a depth of 50 feet below the ground surtace in the area to <br />be mined encountered no ground water. <br />It is anticipated that the pit will be mined to a maximum depth of about 40 feet. <br />The clay will first be ripped with a dozer and either pushed directly into a stockpile or <br />loaded into a scraper and transported to a stockpile. One or more product stockpiles <br />will be located at convenient locations within the disturbed area and moved as <br />necessary to accommodate the operation as it progresses. Product stockpiles will <br />then be depleted as necessary. Front-end loaders will load the clay from the <br />stockpiles into haul trucks for transport to the plant in Caste Rock. <br />-5- <br />