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Flintlock Pit Mining Area <br /> The Baby Doe and Queen Anne draglines were the primary stripping machines for this area. Located in <br /> the East Pyeatt drainage, mining in these F-pit dip line cuts was completed during the 2008-2012 permit <br /> term. Flintlock Pit is currently being backfilled and is in the reclamation process. <br /> Kimber Pit Mining Area <br /> The October 2006 landslide in the East Panel of Trapper Mine resulted in a dramatic change in planned <br /> mining methods at the mine. The K Pit and L Pit (f.k.a. G Pit) were originally planned as dragline pits, <br /> consistent with Trapper's historic mining method. After extensive geotechnical study and mine planning <br /> efforts, it has been determined that dragline mining is not a viable mining method for the K Pit due to the <br /> steeply dipping structure. <br /> After the East Panel landslide, Trapper retained Agapito Associates, Inc. (AAI) to perform geotechnical <br /> investigation of the area to determine the causes and ramifications of the event. Numerous studies and <br /> evaluations were performed by AAI personnel. A detailed analysis of AAI's findings is available in AAI's <br /> January 2008 report, "Trapper G-Pit Landslide Mining Assessment"found in Appendix T. <br /> K Pit is mined with both a truck/loader fleet and draglines. The western portion of the pit is mined in a <br /> strikeline orientation. The truck/loader fleet strips the overburden from the upper coal seams (to L seam) <br /> ahead of the dragline operations. Seams M, Q, and R are exposed with the dragline operation. <br /> The eastern portion of K Pit is mined in a dipline orientation with the truck/loader fleet continuing to uncover <br /> the upper coals to L seam ahead of the draglines,and the dragline operations exposing M, Q, and R seams. <br /> Due to the steeply dipping pit floors, the initial overburden removed from K Pit was placed in the Horse <br /> Gulch Fill and as final pit backfill in Flintlock pit. In addition to this fill, spoil has been placed as a buttress <br /> to the north of K pit, in accordance with the recommendations of AAI. Upon completion of mining, the K Pit <br /> will be backfilled to achieve PMT, as depicted on the M12 map. <br /> L& M Pits(f.k.a. G Pit) Mining Area <br /> L pit has been designed as a strikeline and dipline dragline pit over the years. L pit currently occupies the <br /> eastern portion of the east panel landslide mass. Development of this pit will occur as mining progresses <br /> from the K Pit, and will utilize a combination of truck and loader stripping and dragline stripping (in a dipline <br /> orientation). M Pit is a continuation of L pit on the same dipline orientation and direction of advancement. <br /> M Pit is located outside of the landslide area and is the only distinction from L Pit. <br /> Hawken Pit Mining Area <br /> Mining in Hawken pit(H-pit)was completed in April 1997. After performing reclamation activities,the Queen <br /> Anne dragline walked to Ashmore pit in May 1997. <br /> Ithaca Pit Mining Area <br /> There is no mining scheduled for Ithaca pit(1-pit)during the 2013-2017 permit term. This area was originally <br /> projected to affect previously disturbed and reclaimed but unmined land. It was to be located on the <br /> northern fringes of the old Ashmore pit located in the Coyote and No-Name watersheds. Future <br /> development of this area is currently under consideration. <br /> Nov n7 7014 <br /> 3-15a <br />