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i Drill <br />Hole <br />Drill Hole Lithology Summary <br />Easting Northing Collar Total Depth Township Range Section File <br />C -04 -32 <br />1, <br />349, 874.09 7,51 9.23 1,041.90 <br />T04N R94 <br />36 <br />5B <br />Adjusted Depths <br />From <br />To <br />Seam <br />Thickness Lithologic Qualifiers <br />Lithology Type <br />Shade <br />Color <br />608.79 <br />614.66 <br />SG7 <br />5.88 silty laminated <br />sandstone <br />light <br />grey <br />614.66 <br />614.81 <br />SG7 <br />0.15 <br />siderite <br />light <br />grey /bro <br />614.81 <br />618.71 <br />SG7 <br />3.90 silty <br />sandstone <br />light <br />grey <br />618.71 <br />619.60 <br />0.89 <br />mudstone <br />dark <br />grey <br />619.60 <br />622.00 <br />G7 <br />2.40 <br />coal <br />black <br />622.00 <br />627.55 <br />G7 <br />5.55 <br />coal <br />black <br />627.55 <br />628.21 <br />0.66 <br />carbonaceous mudston <br />dark <br />brown <br />628.21 <br />629.72 <br />` 1.51 <br />mudstone clay rich <br />629.72 <br />630.02 <br />0.30 silty <br />mudstone <br />light <br />grey <br />630.02 <br />632.34 <br />2.32 carbonaceous <br />mudstone clay rich <br />grey <br />632.34 <br />633.31 <br />0.98 <br />mudstone <br />grey <br />633.31 <br />633.95 <br />0.63 <br />siltstone <br />light <br />grey <br />633.95 <br />634.40 <br />0.45 <br />siderite <br />634.40 <br />637.07 <br />2.67 sandy interbedded <br />siltstone /sandstone <br />grey <br />637.07 <br />647.00 <br />9.93 interbedded interlaminated <br />siltstone /sandstone <br />light <br />grey <br />647.00 <br />648.26 <br />1.26 <br />siltstone <br />dark <br />grey <br />• <br />648.26 <br />650.78 <br />2.52 silty laminated <br />sandstone <br />light <br />grey <br />650.78 <br />652.19 <br />1.41 ss laminated <br />siltstone <br />grey <br />652.19 <br />656.72 <br />4.53 ss laminated <br />siltstone <br />grey <br />656.72 <br />658.99 <br />2.27 st <br />sandstone /siltstone <br />grey <br />658.99 <br />659.59 <br />0.60 <br />siltstone <br />grey <br />659.59 <br />661.76 <br />2.17 interbedded interlaminated <br />sandstone /siltstone <br />light <br />grey <br />661.76 <br />664.89 <br />3.12 interbedded interlaminated <br />siltstone /sandstone <br />grey <br />664.89 <br />665.49 <br />0.60 <br />siltstone <br />grey <br />665.49 <br />665.79 <br />0.30 <br />sandstone <br />light <br />grey <br />665.79 <br />666.04 <br />0.25 ck <br />siltstone <br />grey <br />666.04 <br />667.35 <br />1.31 interbedded interlaminated <br />siltstone /sandstone <br />grey <br />667.35 <br />667.86 <br />0.50 <br />siltstone <br />grey <br />667.86 <br />668.82 <br />0.96 <br />sandstone <br />grey <br />668.82 <br />670.83 <br />2.02 <br />siltstone /sandstone <br />grey <br />670.83 <br />672.49 <br />1.66 clayey <br />siltstone <br />grey <br />672.49 <br />679.70 <br />7.21 <br />sandstone /siltstone <br />grey <br />679.70 <br />682.62 <br />2.92 clayey <br />siltstone <br />grey <br />682.62 <br />684.48 <br />1.86 clayey <br />siltstone <br />grey <br />684.48 <br />685.69 <br />1.21 <br />siltstone <br />grey <br />685.69 <br />686.75 <br />1.06 <br />siltstone <br />grey <br />686.75 <br />687.81 <br />1.06 sandy <br />siltstone /sandstone <br />grey <br />687.81 <br />689.62 <br />1.81 <br />sandstone <br />light <br />grey <br />Rio Tinto Energy America - Colowyo Mine <br />Page 374 of 1194 <br />