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Drill Hole Lithology Summary <br />• <br />Drill Hole <br />Easting <br />Northing Collar <br />Total Depth <br />Township Range Section File <br />C -04 -26 <br />1,328 <br />346,721.87 7,539.04 <br />785.10 <br />T03 R94W <br />2 <br />5A <br />Adjusted <br />Depths <br />From <br />To <br />Seam <br />Thickness Lithologic Qualifiers <br />Lithology Type <br />Shade <br />Color <br />384.30 <br />385.10 <br />0.80 <br />carbonaceous mudston <br />black <br />385.10 <br />385.80 <br />H2 <br />0.70 bright <br />coal <br />black <br />385.80 <br />390.89 <br />5.09 dull <br />laminated <br />carbonaceous mudston <br />black <br />390.89 <br />393.34 <br />SH4 <br />2.45 argillaceous <br />sandstone <br />dark <br />grey <br />393.34 <br />395.78 <br />SH4 <br />2.45 carbonaceous <br />sandstone <br />light <br />grey <br />395.78 <br />396.09 <br />SH4 <br />0.31 <br />siderite <br />396.09 <br />403.53 <br />SH4 <br />7.44 carbonaceous <br />laminated <br />sandstone <br />light <br />grey <br />403.53 <br />406.89 <br />SH4 <br />3.36 carbonaceous <br />laminated <br />sandstone <br />light <br />grey <br />406.89 <br />407.20 <br />SH4 <br />0.31 <br />siderite <br />407.20 <br />407.55 <br />SH4 <br />0.36 carbonaceous <br />laminated <br />sandstone <br />light <br />grey <br />407.55 <br />412.80 <br />5.25 <br />mudstone /siltstone <br />dark <br />grey <br />412.80 <br />413.70 <br />H4 <br />0.90 bright <br />coal <br />black <br />413.70 <br />415.20 <br />H4 <br />1.50 bright <br />coal <br />black <br />415.20 <br />416.50 <br />1.30 muddy <br />siltstone /mudstone <br />dark <br />grey <br />416.50 <br />417.50 <br />H6 <br />1.00 bright <br />coal <br />black <br />417.50 <br />418.80 <br />H6 <br />1.30 muddy <br />shaley coal <br />black <br />418.80 <br />421.30 <br />H6 <br />2.50 dull <br />coal <br />black <br />421.30 <br />422.68 <br />1.38 silty <br />laminated <br />siltstone /sandstone <br />dark <br />grey <br />422.68 <br />431.86 <br />9.18 ripple- bedded <br />silty <br />sandstone /siltstone <br />medium <br />grey <br />431.86 <br />435.61 <br />3.75 <br />sandstone /siltstone <br />medium <br />grey <br />435.61 <br />436.20 <br />0.59 <br />sandstone /siltstone <br />medium <br />grey <br />436.20 <br />437.20 <br />H8 <br />1.00 <br />coal <br />black <br />437.20 <br />438.05 <br />0.85 dull <br />carbonaceous mudston <br />black <br />438.05 <br />440.50 <br />2.45 carbonaceous <br />muddy <br />mudstone /siltstone <br />440.50 <br />444.90 <br />13 <br />4.40 bright <br />argillaceous <br />coal <br />black <br />444.90 <br />445.70 <br />0.80 <br />bone <br />445.70 <br />446.50 <br />0.80 bright <br />argillaceous <br />shaley coal <br />black <br />446.50 <br />447.36 <br />0.86 <br />carbonaceous mudston <br />447.36 <br />449.47 <br />2.11 dull <br />siltstone <br />dark <br />grey <br />449.47 <br />451.00 <br />1.53 dull <br />mudstone <br />black <br />451.00 <br />451.46 <br />15 <br />0.46 bright <br />pyritic <br />rashy coal <br />black <br />451.46 <br />455.14 <br />15 <br />3.68 <br />coal <br />455.14 <br />455.60 <br />15 <br />0.46 bright <br />pyritic <br />coal <br />black <br />455.60 <br />456.70 <br />15 <br />1.10 <br />rashy coal <br />456.70 <br />461.40 <br />4.70 silty <br />mudstone <br />dark <br />brown <br />461.40 <br />465.60 <br />4.20 dull <br />siltstone <br />black <br />465.60 <br />470.50 <br />4.90 dull <br />silty <br />mudstone <br />black <br />• <br />470.50 <br />471.50 <br />1.00 <br />siltstone <br />dark <br />grey <br />Rio Tinto Energy America - Colowyo Mine <br />Page 315 of 1194 <br />