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Drill Hole Lithology Summary <br />• <br />File <br />Drill Hole <br />Easting <br />Northing Collar <br />Total Depth <br />Township Range <br />Section <br />C -0 - 13 <br />1,329, 533.62 <br />353 997 82 7,264.21 <br />1 195 60 <br />T04N R94W <br />35 <br />5A u <br />Adjusted Depths <br />From <br />To <br />Seam <br />Thickness Lithologic Qualifiers <br />Lithology Type <br />Shade <br />Color <br />96.55 <br />99.30 <br />2.75 interbedded <br />interlaminated <br />siltstone /sandstone <br />light <br />grey <br />99.30 <br />100.10 <br />0.80 interbedded <br />interlaminated <br />siltstone /sandstone <br />light <br />grey <br />100.10 <br />105.70 <br />SX4 <br />5.60 slightly <br />silty <br />sandstone <br />light <br />grey <br />105.70 <br />110.08 <br />X4 <br />4.38 bright <br />blocky <br />coal <br />black <br />110.08 <br />110.50 <br />X4 <br />0.42 <br />rashy coal <br />110.50 <br />110.75 <br />0.25 <br />carbonaceous mudston <br />dark <br />grey /bro <br />110.75 <br />111.95 <br />1.20 slightly <br />silty <br />mudstone <br />medium <br />grey <br />111.95 <br />114.30 <br />2.35 clayey <br />siltstone <br />light <br />grey <br />114.30 <br />114.40 <br />0.10 clayey <br />siltstone <br />light <br />grey <br />114.40 <br />116.45 <br />2.05 carbonaceous <br />mudstone <br />medium <br />grey <br />116.45 <br />117.05 <br />X5 <br />0.60 bright <br />coal <br />black <br />117.05 <br />117.30 <br />0.25 <br />carbonaceous mudston <br />dark <br />grey /bro <br />117.30 <br />118.65 <br />1.35 silty <br />sandstone <br />light <br />grey /bro <br />118.65 <br />119.10 <br />0.45 clayey <br />siltstone <br />light <br />grey <br />119.10 <br />122.60 <br />3.50 slightly <br />silty <br />mudstone <br />medium <br />grey <br />122.60 <br />123.90 <br />1.30 <br />siderite <br />medium <br />brown <br />• <br />123.90 <br />124.05 <br />0.15 <br />sandstone <br />light <br />brown <br />124.05 <br />125.90 <br />1.85 silty <br />mudstone <br />medium <br />grey <br />125.90 <br />128.45 <br />2.55 clayey <br />siltstone <br />medium <br />grey <br />128.45 <br />129.30 <br />0.85 silty <br />sandstone <br />light <br />brown <br />129.30 <br />132.10 <br />2.80 silty <br />sandstone <br />light <br />brown <br />132.10 <br />134.85 <br />2.75 slightly <br />sandy <br />siltstone <br />light <br />grey <br />134.85 <br />135.35 <br />0.50 <br />siderite <br />light <br />brown <br />135.35 <br />136.25 <br />0.90 silty <br />mudstone <br />medium <br />grey <br />136.25 <br />138.10 <br />1.85 clayey <br />siltstone <br />light <br />grey <br />138.10 <br />141.20 <br />3.10 very <br />silty <br />mudstone <br />medium <br />grey <br />141.20 <br />141.55 <br />0.35 <br />carbonaceous mudston <br />dark <br />grey /bro <br />141.55 <br />142.45 <br />Al <br />0.90 <br />coal <br />black <br />142.45 <br />143.00 <br />0.55 <br />carbonaceous mudston <br />dark <br />grey /bro <br />143.00 <br />144.10 <br />1.10 silty <br />mudstone <br />medium <br />grey <br />144.10 <br />147.61 <br />3.50 <br />siltstone <br />light <br />grey <br />147.61 <br />148.21 <br />0.60 <br />mudstone <br />148.21 <br />148.66 <br />0.45 <br />carbonaceous shale <br />black <br />148.66 <br />153.36 <br />4.71 slightly <br />carbonaceous <br />mudstone <br />dark <br />grey <br />153.36 <br />155.47 <br />2.10 silty <br />mudstone /siltstone <br />medium <br />grey <br />155.47 <br />157.82 <br />2.35 clayey <br />siltstone <br />light <br />grey <br />157.82 <br />158.22 <br />0.40 clayey <br />siltstone <br />light <br />grey <br />158.22 <br />159.92 <br />1.70 slightly <br />carbonaceous <br />mudstone <br />medium <br />grey <br />Rio Tinto Energy America - Colowyo Mine <br />Page 177 of 1194 <br />