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Drill Hole Lithology Summary <br />Drill Hole <br />Easting <br />Northing Collar Total Depth <br />Township Range <br />Section <br />File <br />C -04 -32 <br />1,331,736.90 <br />349,874.09 7,519.23 1,041.90 <br />T04N R94W 36 <br />5B <br />,_ ..,...._ _. <br />Adjusted Depths <br />, �_..... .,... , , <br />. .. .., ... <br />,,::..,..., <br />From <br />To <br />Seam <br />Thickness Lithologic Qualifiers <br />Lithology Type <br />Shade <br />Color <br />321.17 <br />321.62 <br />ZZ <br />0.45 bright <br />coal <br />black <br />321.62 <br />322.22 <br />0.60 <br />carbonaceous shale <br />black <br />322.22 <br />325.00 <br />2.78 <br />mudstone <br />light <br />grey /bro <br />325.00 <br />325.20 <br />0.20 <br />carbonaceous mudston <br />dark <br />brown <br />325.20 <br />327.20 <br />C3 <br />2.00 bright <br />coal <br />black <br />327.20 <br />331.05 <br />C5 <br />3.85 bright <br />coal <br />black <br />331.05 <br />331.65 <br />0.60 <br />mudstone <br />grey /bro <br />331.65 <br />332.21 <br />0.55 <br />siltstone <br />light <br />grey <br />332.21 <br />336.73 <br />4.52 silty <br />sandstone <br />light <br />grey <br />336.73 <br />337.43 <br />0.70 sandy <br />siltstone <br />grey <br />337.43 <br />339.09 <br />1.66 silty <br />sandstone <br />light <br />grey /bro <br />339.09 <br />340.30 <br />1.21 <br />mudstone <br />grey <br />340.30 <br />341.05 <br />0.75 carbonaceous <br />mudstone <br />dark <br />grey <br />341.05 <br />342.50 <br />C7 <br />1.45 bright <br />coal <br />black <br />342.50 <br />342.60 <br />0.10 <br />carbonaceous mudston <br />dark <br />brown <br />342.60 <br />343.80 <br />1.20 carbonaceous <br />mudstone <br />dark <br />grey <br />. <br />343.80 <br />346.54 <br />2.74 silty <br />mudstone clay rich <br />grey <br />346.54 <br />348.24 <br />1.70 silty <br />mudstone <br />light <br />grey <br />348.24 <br />349.48 <br />1.25 clayey <br />siltstone <br />light <br />grey <br />349.48 <br />351.73 <br />2.24 silty <br />sandstone <br />light <br />grey <br />351.73 <br />352.89 <br />1.17 silty <br />sandstone <br />light <br />grey <br />352.89 <br />353.04 <br />0.15 <br />mudstone <br />grey <br />353.04 <br />354.34 <br />1.30 <br />siltstone <br />light <br />grey <br />354.34 <br />366.69 <br />SD1 <br />12.35 silty <br />sandstone <br />light <br />grey <br />366.69 <br />367.00 <br />SD1 <br />0.31 silty <br />sandstone <br />light <br />grey <br />367.00 <br />367.29 <br />0.29 <br />siderite <br />light <br />grey /bro <br />367.29 <br />368.65 <br />1.37 silty <br />mudstone <br />grey <br />368.65 <br />371.48 <br />2.82 <br />mudstone <br />grey <br />371.48 <br />374.77 <br />3.29 clayey <br />siltstone <br />light <br />grey <br />374.77 <br />375.17 <br />0.40 <br />mudstone clay rich <br />375.17 <br />375.42 <br />0.25 <br />siderite <br />light <br />grey /bro <br />375.42 <br />380.60 <br />5.19 interbedded interlaminated <br />mudstone /siltstone <br />grey <br />380.60 <br />381.35 <br />0.75 <br />mudstone <br />dark <br />grey <br />381.35 <br />381.50 <br />0.15 <br />carbonaceous mudston <br />dark <br />brown <br />381.50 <br />381.65 <br />D1 <br />0.15 <br />coal <br />black <br />381.65 <br />384.70 <br />D1 <br />3.05 <br />coal <br />black <br />384.70 <br />391.60 <br />D2 <br />6.90 <br />coal <br />black <br />• <br />391.60 <br />391.81 <br />0.20 <br />carbonaceous mudston <br />dark <br />grey /bro <br />Rio Tinto Energy America - Colowyo Mine <br />Page 370 <br />of 1194 <br />