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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-04-32 <br />1,331,73690 <br />349,874.09 7,519.23 1,041.90 <br />T04N R94W <br />36 <br />5B <br />Adjusted <br />Depths <br />From <br />To <br />Seam <br />Thickness Lithologic Qualifiers <br />Lithology Type <br />Shade <br />Color <br />689.62 <br />691.14 <br />1.51 silty <br />sandstone /siltstone <br />grey <br />691.14 <br />693.05 <br />1.91 silty laminated <br />sandstone <br />grey <br />693.05 <br />694.54 <br />1.49 interbedded interlaminated <br />sandstone/siltstone <br />grey <br />694.54 <br />696.33 <br />1.78 clayey <br />siltstone <br />grey <br />696.33 <br />696.63 <br />0.30 <br />sandstone <br />grey <br />696.63 <br />701.01 <br />4.38 <br />sandstone <br />grey <br />701.01 <br />703.13 <br />2.12 silty <br />sandstone /siltstone <br />grey <br />703.13 <br />703.31 <br />0.18 <br />siltstone <br />grey <br />703.31 <br />704.44 <br />1.13 <br />sandstone <br />grey <br />704.44 <br />704.62 <br />0.18 clayey <br />siltstone <br />grey <br />704.62 <br />708.01 <br />3.40 interlaminated clayey <br />sandstone/siltstone <br />grey <br />708.01 <br />708.27 <br />0.25 <br />siltstone <br />grey <br />708.27 <br />709.93 <br />1.66 silty <br />sandstone <br />grey <br />709.93 <br />710.68 <br />0.76 clayey <br />siltstone /sandstone <br />grey <br />710.68 <br />710.79 <br />0.10 <br />sandstone/siltstone <br />grey <br />710.79 <br />716.33 <br />5.54 silty <br />sandstone/siltstone <br />light <br />grey <br />• <br />716.33 <br />718.39 <br />2.07 <br />mudstone <br />dark <br />grey <br />718.39 <br />719.20 <br />0.81 <br />carbonaceous shale <br />black <br />719.20 <br />722.95 <br />GA <br />3.75 moderately dull <br />coal <br />black <br />722.95 <br />723.05 <br />GA <br />0.10 <br />siltstone <br />grey <br />723.05 <br />725.95 <br />GB <br />2.90 moderately dull <br />coal <br />black <br />725.95 <br />730.10 <br />GB <br />4.15 moderately dull <br />coal <br />black <br />730.10 <br />730.35 <br />GB <br />0.25 <br />boney coal <br />black <br />730.35 <br />732.95 <br />GB <br />2.60 moderately bright <br />coal <br />black <br />732.95 <br />733.15 <br />0.20 <br />carbonaceous shale <br />black <br />733.15 <br />734.08 <br />0.94 <br />carbonaceous mudston <br />black <br />734.08 <br />734.48 <br />0.39 <br />mudstone <br />grey <br />734.48 <br />735.47 <br />0.99 <br />siltstone <br />grey <br />735.47 <br />736.50 <br />1.04 <br />siltstone <br />grey <br />736.50 <br />736.85 <br />0.35 <br />shale <br />dark <br />grey <br />736.85 <br />741.19 <br />4.34 <br />mudstone <br />grey <br />741.19 <br />743.75 <br />2.57 sandy <br />siltstone <br />light <br />grey <br />743.75 <br />748.39 <br />SGC <br />4.64 <br />sandstone <br />light <br />grey <br />748.39 <br />750.46 <br />SGC <br />2.07 <br />sandstone <br />light <br />grey <br />750.46 <br />751.40 <br />SGC <br />0.94 <br />siltstone <br />light <br />grey <br />751.40 <br />753.67 <br />SGC <br />2.27 silty <br />sandstone <br />light <br />grey <br />753.67 <br />754.41 <br />SGC <br />0.74 <br />siltstone <br />grey <br />• <br />754.41 <br />756.18 <br />SGC <br />1.78 <br />sandstone <br />light <br />grey <br />Rio Tinto Energy America - Colowyo Mine <br />Page 375 of 1194 <br />