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MINING PL <br />Exhibit D -AMENDMENT <br />Mining Plan <br />STATEMENT OF APPLICABILITY OF THIS PLAN <br />This exhibit is designed to completely replace all prior mining plans for this site. <br />DETAILED MINING PLAN <br />Linkages to Mining Plan Maps in Exhibit C <br />The maps contained in Exhibit C should be referred to when reviewing this exhibit. Following is a list of <br />the relevant maps in Exhibit C. <br />Exhibit C-1 : This map shows the existing conditions at the site, the main features of the current mining <br />operation, the current topography, and the area of land being added to the permit. It also includes general <br />information on soils, vegetation, and valuable man-made structures within 200 feet of the affected land. <br />Exhibit C-2: This map shows the area to be mined in the future and the direction of mining. <br />Nature of the Deposit to be Mined <br />The sand and gravel deposit to be mined at this site is a blend of alluvial and aeolian deposits. <br />Past examination of the deposit showed that the primary alignment of the deposit is SSE to NNE. <br />Although the deposit is fairly uniform in extent, there does appear to be some possible breaks in the <br />continuity of the deposit, probably as a result of former erosion by Running Creek when its bed was at a <br />higher elevation. The depth of the deposit appears to be at least 30 feet and possibly more. The structure <br />of the deposit is highly laminar and variable in texture. It appears to be mostly composed of alluvial <br />material, but there is also evidence of aeolian layers probably produced by wind blowing across nearby <br />alluvial material with some amount of drifting on the sides of the channel at that time. Clay seams can be <br />found but appear to compose only a small percentage of the entire deposit. As this deposit is composed of <br />Miller Gravel Pit Amendment (2007) Exhibit D Page 1 of 5 <br />