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Drill Hole Lithology Summary <br />Drill Hole <br />Easting <br />Northing Collar <br />Total Depth <br />Township Range Section File <br />C -0 4 -34 <br />1,333,609.17 <br />347,362.13 7,297.79 <br />745. <br />T03N R94W I <br />5B <br />Adjusted Depths <br />From <br />To <br />Seam <br />Thickness Lithologic Qualifiers <br />Lithology Type <br />Shade <br />Color <br />0.00 <br />27.80 <br />27.80 <br />undifferentiated burden <br />27.80 <br />27.80 <br />OXID <br />0.00 <br />27.80 <br />34.80 <br />SE2 <br />7.00 ripple- bedded <br />cemented <br />sandstone <br />dark <br />grey <br />34.80 <br />39.50 <br />SE2 <br />4.70 ripple- bedded <br />cemented <br />sandstone <br />dark <br />grey <br />39.50 <br />44.80 <br />5.30 laminated <br />siltstone /sandstone <br />light <br />grey <br />44.80 <br />46.60 <br />1.80 laminated <br />siltstone /sandstone <br />light <br />grey <br />46.60 <br />52.40 <br />E2 <br />5.80 bright <br />blocky <br />coal <br />black <br />52.40 <br />53.00 <br />E2 <br />0.60 <br />rashy coal <br />black <br />53.00 <br />55.50 <br />2.50 laminated <br />siltstone <br />medium <br />grey <br />55.50 <br />57.90 <br />2.40 laminated <br />siltstone <br />medium <br />grey <br />57.90 <br />59.80 <br />1.90 <br />mudstone <br />59.80 <br />60.29 <br />F1 <br />0.49 bright <br />blocky <br />rashy coal <br />black <br />60.29 <br />63.90 <br />F1 <br />3.61 <br />coal <br />63.90 <br />65.40 <br />F1 <br />1.50 shaley <br />rashy coal <br />black <br />65.40 <br />65.60 <br />0.20 <br />sandstone <br />medium <br />grey <br />65.60 <br />75.63 <br />10.03 laminated <br />siltstone /sandstone <br />light <br />grey <br />• <br />75.63 <br />79.44 <br />3.81 laminated <br />siltstone /sandstone <br />light <br />grey <br />79.44 <br />85.66 <br />SFSU <br />6.22 cemented <br />sandstone <br />medium <br />grey <br />85.66 <br />95.39 <br />SFSU <br />9.73 cemented <br />sandstone <br />medium <br />grey <br />95.39 <br />105.52 <br />10.13 <br />sandstone /siltstone <br />medium <br />grey <br />105.52 <br />114.54 <br />SFSL <br />9.03 cemented <br />salt/pepper lam <br />sandstone <br />medium <br />grey <br />114.54 <br />124.37 <br />SFSL <br />9.83 <br />sandstone <br />medium <br />grey <br />124.37 <br />134.60 <br />SFSL <br />10.23 rip -up clasts <br />sandstone <br />medium <br />grey <br />134.60 <br />144.73 <br />SFSL <br />10.13 cemented <br />rip -up clasts <br />sandstone <br />medium <br />grey <br />144.73 <br />147.94 <br />SFSL <br />3.21 cemented <br />sandstone <br />medium <br />grey <br />147.94 <br />148.14 <br />0.20 pyritic <br />coal <br />black <br />148.14 <br />150.45 <br />2.31 planar - bedded <br />carbonaceous mudston <br />dark <br />grey /bro <br />150.45 <br />155.56 <br />5.11 brittle <br />siltstone <br />medium <br />grey <br />155.56 <br />164.89 <br />9.33 interbedded <br />siltstone /sandstone <br />medium <br />grey <br />164.89 <br />167.90 <br />3.01 laminated <br />argillaceous <br />siltstone <br />medium <br />grey <br />167.90 <br />168.90 <br />F5 <br />1.00 bright <br />blocky <br />coal <br />black <br />168.90 <br />171.10 <br />F6 <br />2.20 <br />coal <br />171.10 <br />174.90 <br />3.80 carbonaceous <br />siltstone <br />dark <br />grey <br />174.90 <br />175.40 <br />0.50 <br />siltstone <br />dark <br />grey <br />175.40 <br />176.00 <br />ZZ <br />0.60 bright <br />blocky <br />coal <br />black <br />176.00 <br />178.77 <br />2.77 fissile <br />mudstone <br />dark <br />grey <br />178.77 <br />183.54 <br />4.77 hard <br />sandy <br />sandstone /siltstone <br />medium <br />grey <br />• <br />183.54 <br />184.40 <br />0.86 <br />carbonaceous mudston <br />dark <br />grey /bro <br />Rio Tinto Energy America - Colowyo Mine <br />Page 384 of 1194 <br />