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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-06-09 <br />1,328,462.05 <br />352 6 51 7,322 88 1 082 00 <br />T04N R 94W <br />_ 35 <br />5C <br />Adjusted Depths <br />From <br />To <br />Seam <br />Thickness Lithologic Qualifiers <br />Lithology Type <br />Shade <br />Color <br />885.10 <br />887.20 <br />K7 <br />2.10 <br />coal <br />black <br />887.20 <br />888.60 <br />1.40 <br />carbonaceous mudston <br />dark <br />brown <br />888.60 <br />889.30 <br />K9 <br />0.70 <br />coal <br />black <br />889.30 <br />891.90 <br />2.60 <br />carbonaceous mudston <br />891.90 <br />909.10 <br />17.20 <br />mudstone <br />medium- <br />grey <br />909.10 <br />936.00 <br />26.90 interbedded <br />mudstone /sandstone <br />936.00 <br />940.40 <br />L3 <br />4.40 <br />coal <br />black <br />940.40 <br />944.10 <br />L5 <br />3.70 <br />coal <br />black <br />944.10 <br />945.10 <br />1.00 <br />carbonaceous mudston <br />dark <br />brown <br />945.10 <br />947.00 <br />ZZ <br />2.00 <br />coal <br />black <br />947.00 <br />970.20 <br />23.20 interbedded <br />sandstone /mudstone <br />970.20 <br />974.70 <br />4.40 <br />sandstone <br />medium- <br />grey <br />974.70 <br />978.30 <br />L7 <br />3.60 <br />coal <br />black <br />978.30 <br />987.10 <br />8.80 interlaminated <br />mudstone /siltstone <br />987.10 <br />992.60 <br />5.50 <br />mudstone <br />medium <br />grey <br />992.60 <br />994.60 <br />2.00 <br />sandstone <br />medium <br />grey <br />• <br />994.60 <br />1001.80 <br />7.20 interbedded <br />mudstone /sandstone <br />1001.80 <br />1003.50 <br />M3 <br />1.70 <br />coal <br />black <br />1003.50 <br />1004.70 <br />1.20 <br />mudstone <br />dark <br />grey <br />1004.70 <br />1006.20 <br />M5 <br />1.50 <br />coal <br />black <br />1006.20 <br />1009.00 <br />M7 <br />2.80 <br />coal <br />black <br />1009.00 <br />1011.30 <br />2.30 <br />mudstone <br />dark <br />grey <br />1011.30 <br />1013.70 <br />2.40 <br />sandstone <br />light <br />grey <br />1013.70 <br />1015.90 <br />2.20 interbedded <br />mudstone /sandstone <br />1015.90 <br />1017.30 <br />1.40 <br />sandstone <br />light <br />grey <br />1017.30 <br />1018.70 <br />1.40 <br />mudstone <br />dark <br />grey <br />1018.70 <br />1021.10 <br />N1 <br />2.40 <br />coal <br />black <br />1021.10 <br />1024.20 <br />N3 <br />3.10 <br />coal <br />black <br />1024.20 <br />1037.60 <br />13.40 interbedded <br />sandstone /mudstone <br />1037.60 <br />1040.10 <br />N5 <br />2.50 <br />coal <br />black <br />1040.10 <br />1042.10 <br />N7 <br />2.00 <br />coal <br />black <br />1042.10 <br />1045.10 <br />3.00 <br />carbonaceous mudston <br />dark <br />brown <br />1045.10 <br />1048.60 <br />3.50 <br />carbonaceous mudston <br />dark <br />brown <br />1048.60 <br />1055.30 <br />6.70 silty <br />sandstone <br />medium <br />grey <br />1055.30 <br />1056.80 <br />03 <br />1.50 <br />coal <br />black <br />1056.80 <br />1061.10 <br />4.30 <br />sandstone <br />medium <br />grey <br />1061.10 <br />1063.50 <br />2.40 <br />mudstone <br />dark <br />grey <br />• <br />1063.50 <br />1064.10 <br />TC <br />0.60 <br />coal <br />black <br />Rio Tinto Energy America - Colowyo Mine <br />Page 697 of 1194 <br />