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Drill Hole Lithology Summary <br />Drill Hole Easting Northi Collar Total Dept Township Range Section File <br />C -04 -20 <br />1,327,958.35 <br />350,928.28 7,460 39 857.00 <br />T04N R94W <br />35 <br />5A m <br />Adjusted <br />Depths <br />From <br />To <br />Seam <br />Thickness Lithologic Qualifiers <br />Lithology Type <br />Shade <br />Color <br />292.75 <br />297.40 <br />4.65 silty <br />mudstone /siltstone <br />dark <br />grey <br />297.40 <br />298.10 <br />0.70 <br />siltstone /mudstone <br />medium <br />grey <br />298.10 <br />298.40 <br />0.30 <br />limestone <br />tan <br />298.40 <br />301.25 <br />2.85 <br />mudstone <br />dark <br />grey <br />301.25 <br />306.30 <br />F1 <br />5.05 bright <br />coal <br />black <br />306.30 <br />307.10 <br />0.80 <br />carbonaceous mudston <br />dark <br />grey <br />307.10 <br />307.50 <br />0.40 ripple- bedded <br />mudstone <br />black <br />307.50 <br />310.51 <br />3.01 <br />mudstone /siltstone <br />medium <br />grey <br />310.51 <br />312.62 <br />2.11 <br />siltstone /sandstone <br />medium <br />grey <br />312.62 <br />322.54 <br />SF3U <br />9.93 <br />sandstone <br />light <br />grey <br />322.54 <br />324.50 <br />SF3U <br />1.95 <br />sandstone <br />medium <br />grey <br />324.50 <br />325.05 <br />SF3U <br />0.55 <br />siltstone <br />medium <br />grey <br />325.05 <br />326.90 <br />SF3U <br />1.85 <br />sandstone <br />light <br />grey <br />326.90 <br />327.65 <br />SF3U <br />0.75 <br />siltstone <br />medium <br />grey <br />327.65 <br />332.27 <br />SF3U <br />4.61 silty laminated <br />sandstone <br />light <br />grey <br />332.27 <br />333.10 <br />SF3U <br />0.83 <br />siltstone <br />medium <br />grey <br />. <br />333.10 <br />337.58 <br />SF3U <br />4.48 <br />sandstone <br />light <br />grey <br />337.58 <br />338.81 <br />SF3U <br />1.23 fining down <br />sandstone <br />medium <br />grey <br />338.81 <br />352.62 <br />SF3U <br />13.81 <br />sandstone <br />light <br />grey <br />352.62 <br />359.64 <br />SF3U <br />7.02 <br />sandstone <br />light <br />grey <br />359.64 <br />361.14 <br />1.50 <br />sandstone /siltstone <br />medium <br />grey <br />361.14 <br />361.89 <br />0.75 laminated <br />sandstone /mudstone <br />medium <br />grey <br />361.89 <br />364.45 <br />2.56 <br />sandstone <br />light <br />grey <br />364.45 <br />365.15 <br />0.70 <br />sandstone /mudstone <br />medium <br />grey <br />365.15 <br />367.76 <br />2.61 <br />sandstone <br />light <br />grey <br />367.76 <br />368.41 <br />0.65 <br />sandstone <br />light <br />grey <br />368.41 <br />368.66 <br />0.25 <br />mudstone <br />medium <br />grey <br />368.66 <br />369.26 <br />0.60 <br />sandstone <br />light <br />grey <br />369.26 <br />371.82 <br />2.56 sandy laminated <br />siltstone <br />light <br />grey <br />371.82 <br />382.54 <br />SF3M <br />10.73 <br />sandstone <br />light <br />grey <br />382.54 <br />382.79 <br />0.25 <br />siltstone /sandstone <br />medium <br />grey <br />382.79 <br />387.11 <br />4.31 interbedded <br />siltstone /sandstone <br />medium <br />grey <br />387.11 <br />387.76 <br />0.65 carbonaceous laminated <br />sandstone <br />medium <br />grey <br />387.76 <br />388.61 <br />0.85 <br />mudstone <br />medium <br />grey <br />388.61 <br />395.78 <br />7.17 <br />sandstone <br />light <br />grey <br />395.78 <br />396.48 <br />0.70 sandy laminated <br />mudstone <br />medium <br />grey <br />396.48 <br />397.83 <br />SF5L <br />1.35 fining down <br />sandstone <br />medium <br />grey <br />. <br />397.83 <br />400.44 <br />SF5L <br />2.61 <br />sandstone <br />light <br />grey <br />Rio Tinto Energy America - Colowyo Mine <br />Page 250 of 1194 <br />