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Drill Hole Lithology Summary <br />Drill Hole <br />Eastin <br />Northing Collar Total Depth <br />Township Range <br />Section File <br />C-04-13 <br />1 3 29,53 3 62 <br />353,997 82 7,264.21 1 19 60 <br />T04N R94W <br />35 <br />5A <br />Adjusted <br />Depths <br />From <br />To <br />Seam <br />Thickness Lithologic Qualifiers <br />Lith000gy Type <br />Shade <br />Color <br />718.80 <br />719.20 <br />0.40 <br />carbonaceous mudston <br />dark <br />grey /bro <br />719.20 <br />723.51 <br />4.31 carbonaceous <br />mudstone <br />medium <br />grey <br />723.51 <br />724.16 <br />0.65 <br />siderite <br />light <br />grey /bro <br />724.16 <br />725.62 <br />1.45 clayey <br />siltstone <br />light <br />grey <br />725.62 <br />725.97 <br />0.35 <br />siderite <br />light <br />brown <br />725.97 <br />727.87 <br />1.90 clayey <br />siltstone <br />light <br />grey <br />727.87 <br />728.37 <br />0.50 <br />siderite <br />light <br />grey /bro <br />728.37 <br />729.18 <br />0.80 clayey <br />siltstone <br />light <br />grey <br />729.18 <br />732.23 <br />S15 <br />3.06 silty <br />sandstone <br />light <br />grey <br />732.23 <br />737.80 <br />SI5 <br />5.56 silty <br />sandstone <br />light <br />grey <br />737.80 <br />738.80 <br />1.00 carbonaceous <br />mudstone <br />medium <br />grey <br />738.80 <br />742.80 <br />15 <br />4.00 bright <br />coal <br />black <br />742.80 <br />743.05 <br />0.25 <br />carbonaceous shale <br />dark <br />grey /bro <br />743.05 <br />744.30 <br />1.25 <br />carbonaceous mudston <br />dark <br />grey /bro <br />744.30 <br />747.20 <br />2.90 clayey <br />siltstone <br />light <br />grey <br />747.20 <br />748.95 <br />1.75 clayey <br />siltstone <br />light <br />grey <br />748.95 <br />762.25 <br />13.30 silty <br />sandstone <br />light <br />grey <br />762.25 <br />764.70 <br />SI7 <br />2.45 silty <br />sandstone <br />light <br />grey <br />764.70 <br />767.40 <br />S17 <br />2.70 interbedded interlaminated <br />sandstone /siltstone <br />light <br />grey <br />767.40 <br />776.80 <br />SI7 <br />9.40 silty <br />sandstone <br />light <br />grey <br />776.80 <br />777.15 <br />0.35 <br />carbonaceous mudston <br />dark <br />grey /bro <br />777.15 <br />780.20 <br />17 <br />3.05 bright <br />coal <br />black <br />780.20 <br />780.75 <br />17 <br />0.55 interbedded coaly <br />sandstone <br />medium <br />brown <br />780.75 <br />781.90 <br />17 <br />1.15 bright <br />coal <br />black <br />781.90 <br />782.30 <br />0.40 <br />carbonaceous mudston <br />dark <br />grey /bro <br />782.30 <br />782.61 <br />0.30 silty <br />sandstone <br />light <br />grey <br />782.61 <br />783.82 <br />1.21 clayey <br />siltstone <br />medium <br />grey <br />783.82 <br />785.08 <br />1.26 silty <br />mudstone <br />medium <br />grey <br />785.08 <br />787.04 <br />1.97 clayey <br />siltstone <br />medium <br />grey <br />787.04 <br />788.25 <br />1.21 clayey <br />mudstone <br />medium <br />grey <br />788.25 <br />791.98 <br />3.73 clayey <br />siltstone <br />medium <br />grey <br />791.98 <br />794.50 <br />2.52 slightly sandy <br />siltstone <br />light <br />grey <br />794.50 <br />800.55 <br />6.05 silty sandy <br />siltstone /sandstone <br />light <br />grey <br />800.55 <br />803.93 <br />3.38 silty <br />mudstone <br />medium <br />grey <br />803.93 <br />806.91 <br />2.97 clayey <br />siltstone <br />medium <br />grey <br />806.91 <br />807.11 <br />0.20 clayey <br />siltstone <br />medium <br />grey <br />807.11 <br />807.41 <br />0.30 <br />siderite <br />light <br />brown <br />• <br />807.41 <br />814.57 <br />7.16 clayey <br />siltstone <br />light <br />grey <br />Rio Tinto Energy America - Colowyo Mine <br />Page <br />184 of 1194 <br />