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Drill Hole Lithology Summary <br />Drill Hole <br />Eas ting <br />Northing <br />Collar Total Depth <br />Township Range <br />Section File <br />C <br />1 3 27 958 35 <br />350, 928.28 <br />7 857.00 <br />T04N R94W <br />35 <br />5A <br />Adjusted Depths <br />� <br />From <br />To <br />Seam <br />Thickness <br />Lithologic Qualifiers <br />Lithology Type <br />Shade <br />Color <br />740.78 <br />741.40 <br />0.62 <br />core loss <br />741.40 <br />743.32 <br />1.92 <br />carbonaceous mudston <br />dark <br />grey /bro <br />743.32 <br />749.70 <br />6.38 <br />mudstone <br />medium <br />grey <br />749.70 <br />751.02 <br />1.32 <br />carbonaceous mudston <br />dark <br />grey /bro <br />751.02 <br />755.67 <br />4.66 <br />mudstone <br />medium <br />grey <br />755.67 <br />756.59 <br />0.91 <br />silty <br />mudstone /siltstone <br />medium <br />grey <br />756.59 <br />756.99 <br />0.41 <br />silty <br />mudstone /siltstone <br />medium <br />grey <br />756.99 <br />760.94 <br />3.95 <br />interlaminated <br />sandstone /siltstone <br />light <br />grey <br />760.94 <br />761.50 <br />0.56 <br />siderite <br />tan <br />761.50 <br />763.47 <br />1.97 <br />interlaminated <br />sandstone /siltstone <br />light <br />grey <br />763.47 <br />764.99 <br />1.52 <br />mudstone <br />medium <br />grey <br />764.99 <br />765.75 <br />0.76 <br />carbonaceous mudston <br />dark <br />grey /bro <br />765.75 <br />769.65 <br />J2 <br />3.90 <br />bright <br />coal <br />black <br />769.65 <br />770.75 <br />1.10 <br />carbonaceous mudston <br />dark <br />grey /bro <br />770.75 <br />771.70 <br />0.95 <br />mudstone <br />medium <br />grey <br />771.70 <br />775.30 <br />3.60 <br />silty <br />mudstone <br />medium <br />grey <br />• <br />775.30 <br />775.65 <br />0.35 <br />siderite <br />tan <br />775.65 <br />778.10 <br />2.45 <br />mudstone <br />medium <br />grey <br />778.10 <br />780.20 <br />SJ4 <br />2.10 <br />sandstone <br />light <br />grey <br />780.20 <br />781.50 <br />SJ4 <br />1.30 <br />silty <br />sandstone <br />light <br />grey <br />781.50 <br />783.00 <br />1.50 <br />mudstone <br />medium <br />grey <br />783.00 <br />783.50 <br />J4 <br />0.50 <br />bright <br />bone <br />black <br />783.50 <br />786.60 <br />J4 <br />3.10 <br />coal <br />786.60 <br />789.30 <br />J6 <br />2.70 <br />bright <br />coal <br />black <br />789.30 <br />789.80 <br />J6 <br />0.50 <br />bone <br />789.80 <br />790.76 <br />0.96 <br />mudstone <br />dark <br />grey <br />790.76 <br />793.03 <br />2.27 <br />silty laminated <br />mudstone <br />medium <br />grey <br />793.03 <br />793.38 <br />ZZ <br />0.35 <br />coal <br />black <br />793.38 <br />794.24 <br />ZZ <br />0.86 <br />bone <br />black <br />794.24 <br />794.59 <br />0.35 <br />carbonaceous mudston <br />dark <br />grey /bro <br />794.59 <br />801.61 <br />7.01 <br />silty <br />mudstone <br />medium <br />grey <br />801.61 <br />802.01 <br />0.40 <br />silty <br />mudstone <br />medium <br />grey <br />802.01 <br />803.42 <br />1.41 <br />mudstone <br />medium <br />grey <br />803.42 <br />804.94 <br />1.51 <br />mudstone clay rich <br />dark <br />grey /bro <br />804.94 <br />805.14 <br />0.20 <br />carbonaceous mudston <br />dark <br />grey /bro <br />805.14 <br />805.74 <br />ZZ <br />0.61 <br />bright <br />coal <br />black <br />805.74 <br />808.42 <br />2.67 <br />carbonaceous <br />carbonaceous mudston <br />dark <br />grey <br />• <br />808.42 <br />810.23 <br />1.82 <br />silty <br />mudstone <br />medium <br />grey <br />Rio Tinto Energy America - Colowyo Mine <br />Page <br />255 of 1194 <br />