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Revised 11/85 <br />• a continuous miner with the rooms on 70-foot centers and 18-feet wide. <br />The main entries will proceed from the surface slightly up-dip in a <br />southerly direction. Panel development areas will extend bath westerly <br />and easterly from the mains as shown on the Mine Plan Map (Map 9). The <br />mine entries will be the main access for men and equipment into the <br />operation, provide for ventilation intake and exhaust, and provide for <br />conveyor haulage of the coal out from the mine. <br />Because the mining system is a continuous room and pillar plan, sets of <br />rooms will be driven at 90° from the main entries. Each set of room <br />entries or panels will be separated from the adjacent panels and the <br />main entries by a barrier of coal as shown on the Mine Plan Map (Map 9). <br />These pillars will be Teft between each panel and the main entries but <br />will be later recovered upon pillar retreat from the mine as shown on <br />Figure 1, Typical Pillar Extraction Sequence. <br />In order to visualize the overall room and pillar method of mining, a <br />• diagram showing the room dimensions is found on the Mine Plan Map <br />(Map 9) <br />The anticipated annual and total production of coal from the C Coal Seam <br />is shown in Table 1, Projected Coal Production. <br />In order to insure the maximum recovery of coal from the C Coal Seam and <br />to avoid future problems with any future mining from the other seams <br />found in the lease, the Bear Coal Company will adhere to the following <br />guidelines during mining operations: <br />1. Coal will be mined in accordance with the most appropriate <br />engineering technology available to assure no disturbance <br />between the seams; <br />2. Protective barrier pillars for all main and submain entries <br />• will be superimposed whenever possible, regardless of the <br />vertical separation or rock competency; <br />-13- <br />