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Drill Hole Lithology Summary <br />Drill Hole Easting Nor thing Collar Total Depth Township Range Section File <br />C-04-20 <br />1 327 958 35 <br />350, 9 28 7 ,460.39 857.00 <br />T04N R94W <br />35 <br />5A <br />Adjusted Depths <br />From <br />To Seam <br />Thickness Lithologic Qualifiers <br />Lithology Type <br />Shade <br />Color <br />68.49 <br />71.54 <br />3.04 <br />siltstone /sandstone <br />grey <br />71.54 <br />73.11 <br />1.57 <br />mudstone <br />grey <br />73.11 <br />73.26 <br />0.15 <br />siltstone <br />grey /bro <br />73.26 <br />75.34 <br />2.08 <br />mudstone <br />grey <br />75.34 <br />75.60 <br />0.25 <br />carbonaceous mudston <br />black <br />75.60 <br />75.90 <br />0.30 <br />coal <br />black <br />75.90 <br />77.93 <br />2.03 <br />mudstone <br />dark <br />grey <br />77.93 <br />79.81 <br />1.88 <br />siltstone /mudstone <br />grey <br />79.81 <br />80.47 <br />0.66 <br />mudstone <br />dark <br />grey <br />80.47 <br />80.77 <br />0.30 <br />siltstone <br />grey <br />80.77 <br />81.38 <br />0.61 <br />mudstone <br />dark <br />grey <br />81.38 <br />81.79 <br />0.41 <br />core loss <br />8179 <br />82.70 <br />0.91 <br />mudstone <br />dark <br />grey <br />82.70 <br />90.60 X3 <br />7.90 <br />coal <br />black <br />90.60 <br />92.55 X4 <br />1.95 <br />coal <br />92.55 <br />92.70 <br />0.15 <br />carbonaceous mudston <br />black <br />• <br />92.70 <br />95.84 <br />3.14 <br />mudstone <br />dark <br />grey <br />95.84 <br />96.34 <br />0.51 <br />siltstone /mudstone <br />96.34 <br />96.85 <br />0.51 <br />siltstone /sandstone <br />light <br />grey <br />96.85 <br />101.05 <br />4.20 <br />siltstone /sandstone <br />light <br />grey <br />101.05 <br />102.11 <br />1.06 <br />mudstone /siltstone <br />light <br />grey <br />102.11 <br />102.47 <br />0.35 <br />mudstone <br />dark <br />grey <br />102.47 <br />102.72 <br />0.25 <br />coal <br />black <br />102.72 <br />103.02 <br />0.30 <br />carbonaceous mudston <br />brown <br />103.02 <br />105.85 <br />2.83 weak <br />mudstone <br />dark <br />grey <br />105.85 <br />108.08 <br />2.23 <br />siltstone /sandstone <br />grey <br />108.08 <br />108.59 <br />0.51 <br />mudstone <br />grey <br />108.59 <br />109.40 <br />0.81 <br />carbonaceous mudston <br />dark <br />grey <br />109.40 <br />112.18 <br />2.78 <br />mudstone clay rich <br />dark <br />grey <br />112.18 <br />113.75 <br />1.57 <br />mudstone clay rich <br />medium <br />grey <br />113.75 <br />114.50 <br />0.76 <br />mudstone <br />medium <br />grey <br />114.50 <br />115.21 <br />0.71 <br />mudstone clay rich <br />dark <br />grey <br />115.21 <br />116.17 <br />0.96 <br />mudstone <br />light <br />grey <br />116.17 <br />121.23 <br />5.06 <br />mudstone <br />medium <br />grey <br />121.23 <br />121.89 <br />0.66 <br />mudstone /siltstone <br />light <br />grey <br />121.89 <br />123.81 <br />1.92 muddy <br />siltstone <br />light <br />grey <br />123.81 <br />125.28 <br />1.47 clayey <br />mudstone <br />medium <br />grey <br />125.28 <br />127.00 <br />1.72 <br />mudstone /siltstone <br />light <br />grey <br />Rio Tinto Energy America - Colowyo Mine <br />Page <br />247 of 1194 <br />