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Drill Hole Lithology Summary <br />• <br />Drill Hole <br />Easting <br />Northing Collar Total Depth <br />Township Range <br />Section File <br />C -0 -0 9 <br />1,328,462.05 <br />352,603.51 7,322.88 1,082 00 <br />T04N R94W <br />35 <br />SC <br />Adjusted <br />Depths <br />From <br />To <br />Seam <br />Thickness Lithologic Qualifiers <br />Lithology Type <br />Shade <br />Color <br />681.90 <br />683.60 <br />H8 <br />1.70 <br />coal <br />black <br />683.60 <br />687.00 <br />3.40 <br />mudstone <br />medium- <br />grey <br />687.00 <br />699.90 <br />12.90 interbedded <br />sandstone /mudstone <br />699.90 <br />702.30 <br />13 <br />2.40 <br />coal <br />black <br />702.30 <br />710.00 <br />7.70 <br />mudstone <br />medium <br />grey <br />710.00 <br />714.50 <br />4.50 interbedded <br />sandstone /mudstone <br />714.50 <br />726.80 <br />12.30 <br />sandstone <br />medium <br />grey <br />726.80 <br />730.90 <br />15 <br />4.10 <br />coal <br />black <br />730.90 <br />732.60 <br />1.70 <br />carbonaceous mudston <br />732.60 <br />747.80 <br />15.20 <br />mudstone <br />dark <br />grey <br />747.80 <br />755.50 <br />17 <br />7.70 <br />coal <br />black <br />755.50 <br />759.50 <br />4.00 <br />mudstone <br />dark <br />grey <br />759.50 <br />760.10 <br />ZZ <br />0.60 <br />coal <br />black <br />760.10 <br />765.20 <br />5.10 <br />mudstone <br />dark <br />grey <br />765.20 <br />767.80 <br />2.60 <br />carbonaceous mudston <br />dark <br />brown <br />767.80 <br />770.30 <br />2.40 <br />mudstone <br />dark <br />grey <br />• <br />770.30 <br />770.90 <br />0.60 <br />carbonaceous mudston <br />770.90 <br />771.70 <br />ZZ <br />0.80 <br />coal <br />black <br />771.70 <br />772.10 <br />0.40 <br />carbonaceous mudston <br />772.10 <br />772.60 <br />ZZ <br />0.50 <br />coal <br />black <br />772.60 <br />778.30 <br />5.70 <br />mudstone <br />dark <br />grey <br />778.30 <br />792.10 <br />13.80 interbedded <br />sandstone /mudstone <br />792.10 <br />793.10 <br />ZZ <br />1.00 <br />coal <br />black <br />793.10 <br />796.00 <br />J2 <br />2.90 <br />coal <br />black <br />796.00 <br />800.30 <br />4.30 <br />mudstone <br />medium <br />grey <br />800.30 <br />825.10 <br />24.80 interbedded <br />sandstone /mudstone <br />825.10 <br />827.90 <br />J4 <br />2.80 <br />coal <br />black <br />827.90 <br />831.70 <br />J6 <br />3.80 <br />coal <br />black <br />831.70 <br />842.50 <br />10.80 <br />mudstone <br />medium <br />grey <br />842.50 <br />843.30 <br />J8 <br />0.80 <br />coal <br />843.30 <br />857.70 <br />14.40 interbedded <br />mudstone /sandstone <br />857.70 <br />858.90 <br />K3 <br />1.20 <br />coal <br />black <br />858.90 <br />863.10 <br />4.20 <br />mudstone <br />dark <br />grey <br />863.10 <br />876.40 <br />13.30 interbedded <br />sandstone <br />876.40 <br />878.30 <br />K5 <br />1.90 <br />coal <br />black <br />878.30 <br />880.20 <br />KM <br />1.90 <br />tuff /tonstien <br />off <br />white <br />880.20 <br />883.90 <br />3.70 coaly <br />carbonaceous mudston <br />black <br />• <br />883.90 <br />885.10 <br />1.20 <br />carbonaceous mudston <br />dark <br />brown <br />Rio Tinto Energy America - Colowyo Mine <br />Page <br />696 of 1194 <br />