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• <br />Drill Hole Lithology Summary <br />Drill Hole <br />Easting <br />Northing Collar Total Depth <br />Township Range Section File <br />C -06 -06 <br />1,329,990.21 <br />350,8 7,26 943.00 <br />T04N R94W <br />35 <br />5C <br />Adjusted <br />Depths <br />From <br />To <br />Seam <br />Thickness Lithologic Qualifiers <br />Lithology Type <br />Shade <br />Color <br />683.70 <br />685.50 <br />J8 <br />1.80 <br />coal <br />black <br />685.50 <br />691.00 <br />5.50 <br />mudstone <br />mediumd <br />grey <br />691.00 <br />712.80 <br />21.80 <br />sandstone <br />light -med <br />grey <br />712.80 <br />713.70 <br />K3 <br />0.90 <br />coal <br />black <br />713.70 <br />721.00 <br />7.30 <br />mudstone <br />medium <br />grey <br />721.00 <br />723.30 <br />2.30 <br />sandstone <br />light <br />grey <br />723.30 <br />726.10 <br />K5 <br />2.80 <br />coal <br />black <br />726.10 <br />728.80 <br />KM <br />2.70 <br />tuff /tonstien <br />cream /w <br />728.80 <br />731.80 <br />K7 <br />3.00 <br />coal <br />black <br />731.80 <br />737.00 <br />5.20 <br />mudstone <br />737.00 <br />750.00 <br />13.00 <br />sandstone <br />light <br />grey <br />750.00 <br />757.30 <br />7.30 interbedded <br />mudstone /sandstone <br />757.30 <br />759.70 <br />K9 <br />2.40 <br />coal <br />black <br />759.70 <br />764.40 <br />4.70 <br />mudstone <br />medium <br />grey <br />764.40 <br />793.20 <br />28.80 <br />sandstone <br />light <br />grey <br />793.20 <br />795.60 <br />L3 <br />2.40 <br />coal <br />black <br />795.60 <br />800.20 <br />L5 <br />4.60 <br />coal <br />black <br />800.20 <br />800.90 <br />0.70 <br />carbonaceous mudston <br />800.90 <br />801.80 <br />ZZ <br />0.90 <br />boney coal <br />801.80 <br />808.00 <br />6.20 <br />mudstone <br />medium <br />grey <br />808.00 <br />813.00 <br />5.00 <br />sandstone <br />813.00 <br />815.80 <br />2.80 <br />carbonaceous mudston <br />dark <br />brown <br />815.80 <br />820.50 <br />L7 <br />4.70 moderately brig <br />coal <br />black <br />820.50 <br />821.80 <br />1.30 <br />carbonaceous mudston <br />821.80 <br />826.00 <br />4.20 <br />sandstone /mudstone <br />826.00 <br />834.00 <br />8.00 interbedded <br />mudstone /siltstone <br />834.00 <br />842.50 <br />8.50 <br />sandstone <br />842.50 <br />843.60 <br />M3 <br />1.10 <br />coal <br />black <br />843.60 <br />845.50 <br />1.90 <br />carbonaceous mudston <br />dark <br />brown <br />845.50 <br />846.80 <br />M5 <br />1.30 <br />coal <br />black <br />846.80 <br />853.00 <br />6.20 interbedded <br />mudstone /siltstone <br />853.00 <br />854.00 <br />M7 <br />1.00 <br />coal <br />854.00 <br />874.50 <br />20.50 interbedded <br />mudstone /sandstone <br />874.50 <br />876.90 <br />N1 <br />2.40 <br />coal <br />black <br />876.90 <br />878.90 <br />N3 <br />2.00 <br />coal <br />black <br />878.90 <br />888.40 <br />9.50 interbedded <br />sandstone /mudstone <br />888.40 <br />893.90 <br />5.50 <br />sandstone <br />light <br />grey <br />• <br />893.90 <br />895.20 <br />01 <br />1.30 <br />coal <br />black <br />Rio Tinto Energy America - Colowyo Mine <br />Page 685 of 1194 <br />