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Corey rn ivo. ~ <br />DMG 112 Permit Conversion Applicarion <br />EXHIBIT D -Mining Plan <br />d) We anticipate having no more than 20 acres of un-graded disturbed azea at any one time. <br />We will have no more than 800 feet of high-wall that would need to be sloped at any one <br />time. Paztial sloping of the east and west interior walls will be done concurrently with <br />the ongoing mining operation. <br />e) Mining may begin in the summer of 2003 after all permits have been issued. The entire <br />pit is considered one phase with final reclamation (i.e.: revegetation) occurring after all <br />gravel reserves have been removed. High-wall reduction on the east and west sides and <br />grading of the pit floor will be done concurrently with movement of the mining face to <br />the south as soon as is practical without interfering with ongoing mining operations. We <br />expect the life of the mine to be approximately 20 yeazs with the tazget date of fall of <br />2023 for completion of mining activities <br />f) The deposit to be mined consists of a glacial terrace deposit of sand and gravel with an <br />average thickness of about 40 feet. Soil overburden is chazacterized as reddish Mesa <br />Clay Loam with thickness of 4 to 14 inches on top of up to 24 inches of lighter Mesa <br />Gravely Clay Loam to pale brown extremely gravelly loam. Mancos Shale underlies the <br />gravel deposit. <br />g) The primary commodity to be mined is sand and gravel for construction aggregate. <br />h) We do not expect any incidental products to be mined/extracted by this operation. <br />