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• <br />Drill Hole <br />Drill Hole Lithology Summary <br />Easting Northing Collar Total Depth Township Range <br />Section File <br />C <br />1, 327, 9 58 35 <br />350,928.28 7,460.39 857.00 <br />T04N R94W <br />35 <br />5A <br />Adjusted <br />Depths <br />From <br />To <br />Seam <br />Thickness Lithologic Qualifiers <br />Lithology Type <br />Shade <br />Color <br />672.58 <br />674.56 <br />1.98 silty <br />mudstone <br />medium <br />grey <br />674.56 <br />675.27 <br />0.71 <br />siderite <br />light <br />grey <br />675.27 <br />682.87 <br />7.60 <br />mudstone <br />medium <br />grey <br />682.87 <br />689.51 <br />6.64 interlaminated <br />siltstone /sandstone <br />medium <br />grey <br />689.51 <br />692.66 <br />3.14 interlaminated <br />sandstone /siltstone <br />medium <br />grey <br />692.66 <br />698.08 <br />SI3 <br />5.42 <br />sandstone <br />light <br />grey <br />698.08 <br />698.28 <br />SI3 <br />0.20 <br />sandstone <br />light <br />grey <br />698.28 <br />699.45 <br />1.17 <br />mudstone <br />medium <br />grey <br />699.45 <br />701.70 <br />13 <br />2.25 bright <br />coal <br />black <br />701.70 <br />701.80 <br />0.10 <br />carbonaceous mudston <br />dark <br />grey /bro <br />701.80 <br />703.50 <br />1.70 silty <br />mudstone <br />medium <br />grey <br />703.50 <br />703.70 <br />0.20 <br />carbonaceous mudston <br />dark <br />grey <br />703.70 <br />704.50 <br />ZZ <br />0.80 bright <br />coal <br />black <br />704.50 <br />706.00 <br />1.50 <br />carbonaceous mudston <br />dark <br />grey /bro <br />706.00 <br />706.40 <br />ZZ <br />0.40 <br />coal <br />black <br />706.40 <br />707.75 <br />1.35 <br />carbonaceous mudston <br />dark <br />grey /bro <br />707.75 <br />711.30 <br />3.55 silty <br />mudstone <br />medium <br />grey <br />711.30 <br />712.90 <br />15 <br />1.60 bright <br />coal <br />black <br />712.90 <br />717.20 <br />15 <br />4.30 boney <br />coal <br />black <br />717.20 <br />717.70 <br />15 <br />0.50 <br />rashy coal <br />717.70 <br />718.41 <br />0.71 <br />mudstone <br />medium <br />grey <br />718.41 <br />718.71 <br />0.30 <br />sandstone <br />light <br />grey <br />718.71 <br />722.56 <br />3.85 silty <br />mudstone <br />medium <br />grey <br />722.56 <br />724.28 <br />1.72 <br />siltstone <br />light <br />grey <br />724.28 <br />727.83 <br />3.54 interlaminated <br />sandstone /siltstone <br />light <br />grey <br />727.83 <br />728.74 <br />0.91 interlaminated <br />sandstone /siltstone <br />light <br />grey <br />728.74 <br />731.37 <br />2.63 <br />sandstone <br />light <br />grey <br />731.37 <br />732.08 <br />0.71 muddy <br />sandstone <br />light <br />grey <br />732.08 <br />732.48 <br />0.41 <br />sandstone <br />light <br />grey <br />732.48 <br />733.29 <br />0.81 <br />mudstone <br />medium <br />grey <br />733.29 <br />734.00 <br />0.71 interlaminated silty <br />mudstone /siltstone <br />light <br />grey <br />734.00 <br />734.51 <br />0.51 <br />sandstone <br />medium <br />grey <br />734.51 <br />735.02 <br />0.51 <br />siderite <br />light <br />brown <br />735.02 <br />735.22 <br />0.20 <br />sandstone <br />light <br />grey <br />735.22 <br />737.14 <br />1.92 <br />mudstone <br />medium <br />grey <br />737.14 <br />738.51 <br />1.37 silty <br />mudstone <br />light <br />grey <br />738.51 <br />739.78 <br />1.27 carbonaceous <br />mudstone <br />dark <br />grey <br />• <br />739.78 <br />740.78 <br />17 <br />1.00 assumed coal <br />core loss <br />Rio Tinto Energy America - Colowyo Mine <br />Page <br />254 of 1194 <br />