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Mining will start in the fall of 1997 or the spring of 1998 after all required permits have been <br /> obtained. The time required to mine, crush and stockpile each phase will two to three months. A <br /> ' phase will produce enough material to last one to two years. The total life of the pit is expected to <br /> be five to eight years. <br /> The depth of overburden averages five feet. The top six inches of the overburden will be saved <br /> and stockpiled for reclamation. The depth of the sand and gravel deposit averages eight feet. The <br /> ' underlying material is Mancos Shale. <br /> The primary product to be mined is sand and gravel. This material will be used for construction <br /> ' aggregate for roads, pipe bedding and concrete aggregate. <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br />