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Drill Hole Lithology Summary <br />Drill Hole <br />Easting <br />Northing Collar Total Depth <br />Township Range Section File <br />._ C -06 -21 <br />1, 327, 588.11 <br />........ .��d .. <br />345,160.53 7, 670.68 760.00 <br />..m�.....Y,. <br />T03N R93W <br />2 <br />5C <br />Adjusted <br />Depths <br />From <br />To <br />Seam <br />Thickness Lithologic Qualifiers <br />Lithology Type <br />Shade <br />Color <br />338.00 <br />346.50 <br />8.50 <br />mudstone <br />dark <br />grey <br />346.50 <br />355.20 <br />8.70 interlaminated <br />siltstone /sandstone <br />grey <br />355.20 <br />358.00 <br />2.80 <br />mudstone <br />dark <br />grey <br />358.00 <br />358.30 <br />0.30 <br />carbonaceous mudston <br />dark <br />brown <br />358.30 <br />362.00 <br />H6 <br />3.70 moderately brig <br />coal <br />black <br />362.00 <br />364.90 <br />H8 <br />2.90 moderately brig <br />coal <br />black <br />364.90 <br />367.30 <br />2.40 carbonaceous <br />mudstone <br />dark <br />grey <br />367.30 <br />368.40 <br />ZZ <br />1.10 moderately brig <br />coal <br />black <br />368.40 <br />371.70 <br />3.30 carbonaceous <br />mudstone <br />dark <br />grey <br />371.70 <br />376.60 <br />13 <br />4.90 moderately brig <br />coal <br />black <br />376.60 <br />379.00 <br />2.40 carbonaceous coal lams <br />mudstone <br />dark <br />grey <br />379.00 <br />384.00 <br />15 <br />5.00 moderately brig <br />coal <br />black <br />384.00 <br />385.00 <br />1.00 <br />carbonaceous mudston <br />dark <br />brown <br />385.00 <br />389.70 <br />4.70 <br />mudstone <br />dark <br />grey <br />389.70 <br />394.70 <br />5.00 <br />siltstone /mudstone <br />grey <br />394.70 <br />407.10 <br />12.40 interbedded <br />sandstone /siltstone <br />grey <br />407.10 <br />412.00 <br />17 <br />4.90 moderately brig <br />coal <br />black <br />412.00 <br />413.00 <br />1.00 coal lams <br />carbonaceous shale <br />black <br />413.00 <br />424.50 <br />11.50 siderite nodules coaly <br />mudstone <br />grey <br />424.50 <br />428.80 <br />4.30 muddy <br />siltstone /sandstone <br />grey <br />428.80 <br />440.40 <br />11.60 <br />sandstone /siltstone <br />grey <br />440.40 <br />476.00 <br />35.60 fining down very silty @ bas <br />sandstone <br />light <br />grey <br />476.00 <br />479.00 <br />J2 <br />3.00 moderately brig <br />coal <br />black <br />479.00 <br />480.00 <br />1.00 <br />carbonaceous shale <br />black <br />480.00 <br />481.10 <br />1.10 <br />mudstone <br />grey <br />481.10 <br />483.70 <br />2.60 <br />siltstone <br />grey <br />483.70 <br />486.20 <br />2.50 <br />mudstone <br />grey <br />486.20 <br />487.00 <br />0.80 <br />carbonaceous shale <br />black <br />487.00 <br />488.80 <br />J6 <br />1.80 moderately brig <br />coal <br />black <br />488.80 <br />491.10 <br />2.30 <br />carbonaceous shale <br />black <br />491.10 <br />501.00 <br />9.90 coarsening dow sandy base <br />mudstone /siltstone <br />grey <br />501.00 <br />504.70 <br />3.70 <br />sandstone <br />light <br />grey <br />504.70 <br />507.40 <br />J8 <br />2.70 moderately brig <br />coal <br />black <br />507.40 <br />511.00 <br />3.60 siderite infl top <br />mudstone <br />dark <br />grey /bro <br />511.00 <br />518.40 <br />7.40 st lams <br />sandstone <br />light <br />grey <br />518.40 <br />521.00 <br />2.60 very carby botto <br />mudstone <br />dark <br />grey <br />521.00 <br />523.00 <br />K5 <br />2.00 moderately brig <br />coal <br />black <br />523.00 <br />526.40 <br />3.40 <br />mudstone <br />Rio Tinto Energy America - Coiowyo Mine <br />Page <br />745 of 1194 <br />