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• HENDERSON MINE AND MILL <br /> An Amendment: Mining and Reclamation Permit M-77-342 <br /> Increase in Affected Land for Construction and Operation of the PC3 <br /> Overland Surface Conveyor System <br /> 1.0 INTRODUCTION <br /> The Climax Molybdenum Company (CMC), Henderson Mine and Mill <br /> (Henderson) began underground mining of molybdenite ore and the production <br /> of molybdenum disulfide concentrates in mid-1976. The Mining and Reclamation <br /> Permit (Permit) required under the Colorado Mined Land Reclamation Act of <br /> 1976 (Act) was approved by the Colorado Mined Land Reclamation Board <br /> (Board) in late 1977. This Permit is M-77-342. Subsequently, the permit was <br /> formally amended in 1981. In addition, three Technical Revisions JR) to the <br /> Permit were approved by the Colorado Division of Minerals and Geology (DMG) <br /> • over the 21 year operating history of Henderson. Two other TRs (TR-04 and TR- <br /> 05) presently are being reviewed by DMG. These latter TRs are the <br /> Environmental Protection Plan (EPP) and the groundwater plan, respectively. <br /> Historically and operationally, there has been little change in Henderson's <br /> operations since production was initiated. The mine and mill facilities have been <br /> active through the past 21 years with no periods of temporary cessation. <br /> Presently, the underground mine is producing at a rate of approximately 24,000 <br /> tons per day, 246 days per year; production levels and schedules that are <br /> dependent upon market conditions and may vary on short notice. <br /> The mine is located at the headwaters of the West Fork of Clear Creek on the <br /> east side of the Continental Divide. Mined ore is hauled by rail through the 9.6 <br /> mile long main haulage tunnel to the west side of the Divide and, hence, along a <br /> • <br /> oox:gga: <br /> January 16.1998 <br /> Plan doc <br />