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APPROX. NORTH <br />SPOIL <br />4 Max. Spoil at 12:1 Sl Angle <br />Height < 100' 1:1 Slooppee145 Recut <br />Height> 100'12:1 Slopel40° Recut <br />Some local areas steeper ( see text) <br />40° Max, Spoit ( 1.2:1 Slope Angle) <br />Height < 10(1' 1:1 Slope 14 Recut <br />Height > 1pp' 1.2:1 Slo 40° R <br />Soe local areas steeper��see text <br />N:\ CCC_ ENG\ Dwgs\ Environ \TRs_MRs\2003 \TR_58_5YR_ PERMIT_ RENEWAL \gr_ctd_ep_highwall_miner.dwg, Plotted by Firestone <br />!111®1111 1 1 [V I li l 1111 ' I 11 1 Ll It 1A _ � _ <br />170' 11801 <br />90' • 300' <br />0' 1 80' <br />25'185' <br />15,19Y <br />20' 140' HIGHWALL <br />20'50' <br />> 50' Min. <br />Ir< Some local areas steeper ( see text) <br /><6 <br />< 7S° Some local areas steeper ( see text) <br />> 10' Min. <br />> 10' <br />E <br />ORIGINAL SURFACE <br />P'. <br />HIGHWALL MINING AREA <br />B, C, D, & E SEAMS <br />APPROX. 2000 FT. <br />I, E— 8AQA A. P L�A� am a <br />Registered Professional Engineer in the State of <br />Colorado and a representative of Knight Piesold and <br />NOTES: Co., 1050 Seventeenth Street, Suite 450, Denver, <br />ALL DIMENSIONS REFER TO HORIZONTAL OR VERTICAL DISTANCES ;ti, Colorado 80265 -0450. The information contained in <br />ALL SEAMS DIP APPROX. 4 °TOWARDS THE N30E " this document was provided by Colowyo Coal Company <br />2 F1 Y. L,P, as identified in Section 2,03,3 of its 1997 Permit <br />Renewal, Being familiar with the Colowyo operation and <br />HIGHWALL MINING SEAMS <br />%i rl. the coal program permitting process in Colorado, <br />the information contained herein is reasonable and <br />correct to �Ke bestQf my knowledge and experience, <br />I /z5lO3 <br />Date <br />APPROX. SOUTH <br />R <br />*0A,� FG <br />Al <br />A2 <br />A6 <br />P'. <br />HIGHWALL MINING AREA <br />B, C, D, & E SEAMS <br />APPROX. 2000 FT. <br />I, E— 8AQA A. P L�A� am a <br />Registered Professional Engineer in the State of <br />Colorado and a representative of Knight Piesold and <br />NOTES: Co., 1050 Seventeenth Street, Suite 450, Denver, <br />ALL DIMENSIONS REFER TO HORIZONTAL OR VERTICAL DISTANCES ;ti, Colorado 80265 -0450. The information contained in <br />ALL SEAMS DIP APPROX. 4 °TOWARDS THE N30E " this document was provided by Colowyo Coal Company <br />2 F1 Y. L,P, as identified in Section 2,03,3 of its 1997 Permit <br />Renewal, Being familiar with the Colowyo operation and <br />HIGHWALL MINING SEAMS <br />%i rl. the coal program permitting process in Colorado, <br />the information contained herein is reasonable and <br />correct to �Ke bestQf my knowledge and experience, <br />I /z5lO3 <br />Date <br />APPROX. SOUTH <br />R <br />*0A,� FG <br />