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Drill Hole <br />Drill Hole Lithology Summary <br />Easting Northing Collar Total Depth Township Range <br />Section File <br />C -04 -13 <br />1,32 9,533.62 <br />353,997 82 7,264.21 <br />1 195 60 <br />T04N R94W <br />35 <br />5A <br />Adjusted <br />Depths <br />From <br />To <br />Seam <br />Thickness Lithologic Qualifiers <br />Lithology Type <br />Shade <br />Color <br />249.75 <br />249.95 <br />0.20 <br />siderite <br />light <br />grey /bro <br />249.95 <br />250.25 <br />0.30 clayey <br />siltstone <br />medium <br />grey <br />250.25 <br />253.70 <br />3.45 very <br />calcareous <br />sandstone <br />light <br />grey <br />253.70 <br />256.00 <br />2.30 interbedded <br />interlaminated <br />siltstone /sandstone <br />light <br />grey <br />256.00 <br />258.55 <br />2.55 silty <br />mudstone <br />medium <br />grey <br />258.55 <br />259.25 <br />0.70 clayey <br />siltstone <br />light <br />grey <br />259.25 <br />262.00 <br />2.75 clayey <br />sandstone /siltstone <br />medium <br />grey <br />262.00 <br />262.45 <br />0.45 clayey <br />sandstone /siltstone <br />medium <br />grey <br />262.45 <br />265.85 <br />3.40 clayey <br />mudstone /siltstone <br />light <br />grey <br />265.85 <br />266.15 <br />0.30 <br />siderite <br />light <br />grey /bro <br />266.15 <br />267.30 <br />1.15 <br />siltstone /mudstone <br />light <br />grey <br />267.30 <br />267.55 <br />0.25 silty <br />sandstone <br />light <br />olive <br />267.55 <br />267.65 <br />0.10 <br />siltstone <br />medium <br />grey <br />267.65 <br />267.70 <br />0.05 <br />sandstone <br />light <br />grey <br />267.70 <br />270.10 <br />2.40 interbedded <br />interlaminated <br />siltstone /mudstone <br />medium <br />grey <br />270.10 <br />270.65 <br />0.55 <br />carbonaceous mudston <br />dark <br />grey /bro <br />• <br />270.65 <br />271.15 <br />D1 <br />0.50 bright <br />blocky <br />rashy coal <br />black <br />271.15 <br />272.20 <br />D1 <br />1.05 <br />coal <br />272.20 <br />272.45 <br />D1 <br />0.25 <br />mudstone <br />272.45 <br />274.00 <br />D1 <br />1.55 bright <br />blocky <br />coal <br />black <br />274.00 <br />281.05 <br />D2 <br />7.05 <br />coal <br />281.05 <br />281.35 <br />0.30 <br />carbonaceous mudston <br />dark <br />grey /bro <br />281.35 <br />282.90 <br />1.55 silty <br />carbonaceous <br />mudstone <br />brown <br />282.90 <br />283.55 <br />0.65 <br />siltstone /mudstone <br />light <br />grey <br />283.55 <br />292.00 <br />SE2 <br />8.45 very <br />silty <br />sandstone <br />light <br />grey <br />292.00 <br />294.45 <br />SE2 <br />2.45 <br />silty <br />sandstone <br />light <br />grey <br />294.45 <br />295.05 <br />0.60 interbedded <br />interlaminated <br />siltstone /mudstone <br />light <br />grey <br />295.05 <br />296.90 <br />1.85 carbonaceous <br />silty <br />mudstone <br />medium <br />grey <br />296.90 <br />301.10 <br />E2 <br />4.20 bright <br />coal <br />black <br />301.10 <br />301.50 <br />0.40 <br />carbonaceous mudston <br />dark <br />grey /bro <br />301.50 <br />304.05 <br />2.55 slightly <br />silty <br />mudstone <br />medium <br />grey <br />304.05 <br />304.95 <br />0.90 <br />carbonaceous mudston <br />dark <br />grey /bro <br />304.95 <br />306.05 <br />1.10 clayey <br />siltstone /sandstone <br />light <br />grey <br />306.05 <br />309.75 <br />3.70 sandy <br />clayey <br />siltstone /sandstone <br />light <br />grey <br />309.75 <br />310.85 <br />F1 <br />1.10 bright <br />coal <br />black <br />310.85 <br />311.60 <br />0.75 <br />carbonaceous mudston <br />dark <br />grey /bro <br />311.60 <br />311.95 <br />0.35 silty <br />mudstone <br />grey <br />• <br />311.95 <br />314.25 <br />2.30 sandy <br />siltstone <br />light <br />grey <br />Rio Tinto Energy America <br />- Colowyo Mine <br />Page <br />179 of 1194 <br />