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The general operation plan for the Foidel Creek Mine is shown on Map 23, Mine Plan. This map shows the <br />• planned schedule for the mine advance throughout the life of the mine. Separate five-year renewals will be <br />obtained and a performance bond will be posted as necessary. The permit area associated with the underground <br />coal mine encompasses approximately 22,247.2 acres. Total disturbed acreage at the mine is 460.0 acres. <br />As shown on Maps 1 & 2, there are two parcels of unleased federal coal and one parcel of unleased federal coal <br />overlain by federal surface. For quick reference the parcels are located in portions of Sections 5, 19 and 20 of TSN, <br />R86W and portions of Section 33, T6N, R86W. <br />Twentymile Coal Company understands that the Bureau of Land Management maintains control of the coal within <br />these areas. Further, it is understood that the BLM controls surface usage of the parcel of land located in the SW'/, <br />SW'/< Section 33, T6N, R86W. <br />Map 23A presents the initial mining area at a more detailed scale. The mining projections are for the initial five <br />year period. This map has been revised to reflect partial extension of Panels 5 and 6 under portions of the <br />designated Fish Creek AVF. Panel extension was not contemplated under the original Foidel Creek mine plan. <br />Subsequent evaluation of projected subsidence and related effects based on actual mining experience, however, <br />indicated that subsidence would not significantly impact the designated AVF or related environmental values. For <br />the potentially impacted portion of the designated Fish Creek AVF, the subsidence evaluation approach and <br />conclusions are documented by Exhibits 7B, 7C, 45 and 46 and by appropriate revisions to Exhibit l4. <br />The proposed subsidence monitoring network for the longwall area is shown on Map 23A. Mapped subsidence <br />survey lines include the supplemental monitoring stations to be established for evaluation of potential subsidence <br />impacts in the effected portion of the designated Fish Creek AVF. <br />SOUTHWEST MINING DISTRICT <br />• Twentymile Coal Company, through the acquisition of the unleased federal coal reserves located in the Southwest <br />Mining District, added additional recoverable reserves to its existing mine plan. The Southwest Mining District <br />lease application was submitted to the Bureau of Land Management on January 27, 1992, and currently is being <br />reviewed by that agency. It is anticipated the Southwest Mining District lease will be issued during late 1992 or <br />early 1993. <br />The lease application area is located in the Nl/2 of Section 36, TSN, R87W, and the W/2NR/4 and the NW/4 of <br />Section 31, TSN, R86W. The lease application comprises approximately 537 acres. The surface of this coal is <br />controlled by three different landowners, those being Cyprus Western Coal Company, Robert Perry, and Robert <br />Perry et al. <br />Twentymile Coal Company is planning to extend the 2 and 3 southwest panels to the west. The 2 southwest panel <br />will be extended approximately 300 feet to the west and the 3 southwest panel will be extended approximately 700 <br />feet to the west. The modified mine projections are shown on Maps 23 and 23A, Mine Plan. This will allow for <br />the recovery of additional reserves in the newly acquired federal lease. <br />r1 <br />I~ <br />P+~P~tO~I~~D AFR 2 ~ 2000 <br />Permit Renewal No. 3 2.05.3 I I/1/99 <br />