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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, 5 88.11 <br />345,160.53 7, 670.68 760.00 <br />T03N R93W <br />2 <br />5C <br />_.._. <br />Adjusted <br />Depths <br />Nary ..,,, <br />...,,....�w�� ._.. .,�.... p.,, . <br />From <br />To <br />Seam <br />Thickness Lithologic Qualifiers <br />Lithology Type <br />Shade <br />Color <br />526.40 <br />529.00 <br />KM <br />2.60 clayey <br />tuff /tonstien <br />light <br />tan -white <br />529.00 <br />532.00 <br />K7 <br />3.00 shaley base banded <br />coal <br />black <br />532.00 <br />538.20 <br />6.20 occ carby <br />mudstone <br />dark <br />grey <br />538.20 <br />542.40 <br />K9 <br />4.20 banded <br />coal <br />black <br />542.40 <br />560.50 <br />18.10 interbedded occ carby <br />mudstone /siltstone <br />grey <br />560.50 <br />564.20 <br />3.70 occ thick coal lams <br />carbonaceous shale <br />564.20 <br />568.20 <br />L3 <br />4.00 banded, abunda shale near base <br />coal <br />black <br />568.20 <br />574.60 <br />L5 <br />6.40 banded, abunda shale near base <br />coal <br />black <br />574.60 <br />576.60 <br />L7 <br />2.00 banded, abunda shale near base <br />coal <br />black <br />576.60 <br />577.00 <br />0.40 <br />carbonaceous shale <br />black <br />577.00 <br />584.00 <br />7.00 coarsening dow coal lams <br />mudstone <br />grey <br />584.00 <br />600.00 <br />16.00 occ ss /ms lams <br />siltstone <br />grey <br />600.00 <br />601.00 <br />1.00 hard <br />siderite <br />tan <br />601.00 <br />605.80 <br />4.80 interbedded silty <br />sandstone /mudstone <br />grey <br />605.80 <br />612.70 <br />6.90 <br />sandstone <br />tight <br />grey <br />612.70 <br />613.50 <br />M3 <br />0.80 <br />coal <br />613.50 <br />623.00 <br />9.50 silty interbedded <br />sandstone /mudstone <br />grey <br />623.00 <br />623.90 <br />0.90 <br />carbonaceous shale <br />black <br />623.90 <br />626.40 <br />M5 <br />2.50 interbedded <br />coal <br />black <br />626.40 <br />630.60 <br />4.20 coaly <br />carbonaceous mudston <br />dark <br />brown <br />630.60 <br />634.00 <br />M7 <br />3.40 banded <br />coal <br />black <br />634.00 <br />635.40 <br />1.40 <br />carbonaceous shale <br />black <br />635.40 <br />636.00 <br />ZZ <br />0.60 <br />coal <br />black <br />636.00 <br />644.40 <br />8.40 fining down <br />siltstone <br />grey <br />644.40 <br />645.00 <br />N5 <br />0.60 <br />coal <br />black <br />645.00 <br />646.80 <br />1.80 soft clayey <br />tuff /tonstien <br />light <br />tan <br />646.80 <br />648.50 <br />N7 <br />1.70 <br />coal <br />black <br />648.50 <br />652.80 <br />4.30 <br />carbonaceous mudston <br />dark <br />brown <br />652.80 <br />655.00 <br />2.20 <br />sandstone <br />grey <br />655.00 <br />658.50 <br />3.50 tuffaceous <br />mudstone <br />dark <br />grey <br />658.50 <br />663.70 <br />5.20 siderite nodules <br />sandstone /siltstone <br />light <br />grey <br />663.70 <br />671.70 <br />8.00 coal lams <br />mudstone <br />dark <br />grey <br />671.70 <br />673.00 <br />01 <br />1.30 <br />coal <br />black <br />673.00 <br />675.70 <br />2.70 <br />carbonaceous mudston <br />dark <br />brown <br />675.70 <br />678.00 <br />03 <br />2.30 <br />coal <br />black <br />678.00 <br />697.00 <br />19.00 occ ss bed & lamination <br />mudstone <br />dark <br />grey <br />697.00 <br />697.50 <br />TC <br />0.50 <br />coal <br />black <br />• <br />697.50 <br />697.50 <br />TCT <br />0.00 <br />Rio Tinto Energy America - Colowyo Mine <br />Page <br />746 of 1194 <br />