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Drill Hole Lithology Summaq <br />• <br />Drill Hole <br />Easting <br />Northing Collar Total Depth <br />Township Range <br />Section File <br />C -04 - <br />1,327,958.35 <br />350,928.28 7,46 8 57.00 <br />T04N R94W <br />35 <br />5A <br />Adjusted <br />De....,., <br />pths <br />From <br />To <br />Seam <br />Thickness Lithologic Qualifiers <br />Lithology Type <br />Shade <br />Color <br />0.00 <br />5.07 <br />5.07 <br />siltstone <br />grey /bro <br />5.07 <br />10.15 <br />SY25 <br />5.07 <br />sandstone <br />grey /bro <br />10.15 <br />15.22 <br />5.07 <br />mudstone <br />black <br />15.22 <br />18.27 <br />Y25 <br />3.04 <br />weathered coal <br />grey <br />18.27 <br />18.77 <br />0.51 <br />core loss <br />18.77 <br />22.68 <br />3.91 <br />mudstone <br />dark <br />grey <br />22.68 <br />24.35 <br />1.67 <br />carbonaceous mudston <br />black <br />24.35 <br />25.67 <br />1.32 <br />mudstone <br />grey <br />25.67 <br />26.08 <br />0.41 <br />core loss <br />26.08 <br />26.74 <br />0.66 <br />siltstone <br />grey <br />26.74 <br />26.74 <br />OXID <br />0.00 <br />26.74 <br />28.16 <br />1.42 <br />mudstone clay rich <br />dark <br />grey <br />28.16 <br />28.56 <br />0.41 <br />mudstone /siltstone <br />grey <br />28.56 <br />30.14 <br />1.57 <br />sandstone /siltstone <br />light <br />grey <br />30.14 <br />30.44 <br />0.30 <br />siderite <br />light <br />brown <br />30.44 <br />41.30 <br />10.86 <br />sandstone /siltstone <br />light <br />grey <br />• <br />41.30 <br />49.42 <br />8.12 <br />sandstone /siltstone <br />light <br />grey <br />49.42 <br />50.23 <br />0.81 <br />mudstone /siltstone <br />grey <br />50.23 <br />50.94 <br />0.71 <br />sandstone /siltstone <br />grey <br />50.94 <br />51.95 <br />1.01 <br />mudstone <br />dark <br />grey <br />51.95 <br />54.08 <br />2.13 <br />mudstone <br />grey <br />54.08 <br />55.10 <br />1.01 <br />mudstone <br />dark <br />grey <br />55.10 <br />55.51 <br />0.41 <br />siltstone <br />grey <br />55.51 <br />55.81 <br />0.30 <br />mudstone clay rich <br />dark <br />grey <br />55.81 <br />56.52 <br />0.71 <br />core loss <br />56.52 <br />57.03 <br />0.51 <br />mudstone <br />dark <br />grey <br />57.03 <br />57.28 <br />0.25 <br />siltstone <br />grey <br />57.28 <br />58.96 <br />1.67 <br />mudstone <br />dark <br />grey <br />58.96 <br />59.56 <br />0.61 <br />sandstone /siltstone <br />grey <br />59.56 <br />59.87 <br />0.30 <br />mudstone clay rich <br />dark <br />grey <br />59.87 <br />60.78 <br />0.91 <br />mudstone /siltstone <br />grey <br />60.78 <br />61.09 <br />0.30 <br />mudstone <br />dark <br />grey <br />61.09 <br />61.90 <br />0.81 <br />mudstone <br />grey <br />61.90 <br />65.15 <br />3.25 <br />siltstone /sandstone <br />grey <br />65.15 <br />65.45 <br />0.30 <br />mudstone <br />dark <br />grey <br />65.45 <br />66.97 <br />1.52 <br />core loss <br />66.97 <br />67.68 <br />0.71 <br />siltstone /mudstone <br />grey <br />• <br />67.68 <br />68.49 <br />0.81 <br />sandstone <br />light <br />grey <br />Rio Tinto Energy America - Colowyo Mine <br />Page <br />246 of 1194 <br />