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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-04-13 <br />1 329 62 <br />353,997.82 7,264 21 <br />1,195 60 <br />T04N R94W <br />35 <br />5A <br />_.. _ Adjusted Depths„ <br />N. <br />From <br />To <br />Seam <br />Thickness Lithologic Qualifiers <br />Lithology Type <br />Shade <br />Color <br />159.92 <br />171.34 <br />11.41 interbedded <br />siltstone /mudstone <br />medium <br />grey <br />171.34 <br />172.14 <br />0.80 <br />mudstone <br />dark <br />grey <br />172.14 <br />172.79 <br />0.65 sandy <br />siltstone /mudstone <br />light <br />grey <br />172.79 <br />176.44 <br />3.65 silty <br />mudstone <br />medium <br />grey <br />176.44 <br />176.64 <br />0.20 <br />siderite <br />light <br />grey /bro <br />176.64 <br />180.80 <br />4.16 slightly <br />carbonaceous <br />mudstone <br />medium <br />grey <br />180.80 <br />182.25 <br />B1 <br />1.45 bright <br />coal <br />black <br />182.25 <br />182.45 <br />0.20 <br />carbonaceous mudston <br />dark <br />grey /bro <br />182.45 <br />184.25 <br />1.80 slightly <br />clayey <br />mudstone <br />medium <br />grey <br />184.25 <br />187.65 <br />3.40 slightly <br />clayey <br />sandstone /siltstone <br />medium <br />grey <br />187.65 <br />191.22 <br />3.57 very <br />silty <br />sandstone /siltstone <br />light <br />grey <br />191.22 <br />191.31 <br />0.09 <br />siderite <br />light <br />grey /bro <br />191.31 <br />195.50 <br />4.19 very <br />silty <br />sandstone /siltstone <br />light <br />grey <br />195.50 <br />197.10 <br />1.60 slightly <br />sandy <br />siltstone /mudstone <br />light <br />grey <br />197.10 <br />198.00 <br />0.90 calcareous <br />clayey <br />siltstone <br />light <br />grey <br />198.00 <br />200.25 <br />2.25 slightly <br />carbonaceous <br />mudstone <br />medium <br />grey <br />• <br />200.25 <br />201.05 <br />B2 <br />0.80 bright <br />blocky <br />coal <br />black <br />201.05 <br />201.35 <br />B2 <br />0.30 <br />shaley coal <br />black <br />201.35 <br />202.65 <br />B2 <br />1.30 bright <br />coal <br />dark <br />grey /bro <br />202.65 <br />202.85 <br />B2 <br />0.20 <br />shaley coal <br />black <br />202.85 <br />205.65 <br />B3 <br />2.80 bright <br />coal <br />black <br />205.65 <br />209.80 <br />4.15 slightly <br />carbonaceous <br />mudstone <br />dark <br />grey <br />209.80 <br />211.75 <br />1.95 slightly <br />silty <br />mudstone /siltstone <br />medium <br />grey <br />211.75 <br />217.30 <br />5.55 interbedded <br />interlaminated <br />sandstone /siltstone <br />light <br />grey <br />217.30 <br />225.45 <br />8.15 interbedded <br />interlaminated <br />sandstone /siltstone <br />light <br />grey <br />225.45 <br />229.90 <br />4.45 silty <br />carbonaceous <br />mudstone <br />dark <br />grey <br />229.90 <br />232.30 <br />2.40 interbedded <br />interlaminated <br />sandstone /siltstone <br />light <br />grey <br />232.30 <br />234.05 <br />1.75 interbedded <br />interlaminated <br />sandstone /siltstone <br />light <br />grey <br />234.05 <br />234.30 <br />0.25 <br />carbonaceous mudston <br />dark <br />grey /bro <br />234.30 <br />236.70 <br />C3 <br />2.40 bright <br />coal <br />black <br />236.70 <br />238.10 <br />1.40 slightly <br />carbonaceous <br />mudstone <br />medium <br />grey <br />238.10 <br />238.30 <br />0.20 <br />carbonaceous mudston <br />dark <br />grey /bro <br />238.30 <br />241.85 <br />C5 <br />3.55 bright <br />coal <br />black <br />241.85 <br />242.40 <br />0.55 slightly <br />carbonaceous <br />mudstone <br />dark <br />grey <br />242.40 <br />242.80 <br />0.40 <br />coal <br />black <br />242.80 <br />246.25 <br />3.45 slightly <br />carbonaceous <br />mudstone <br />medium <br />grey <br />246.25 <br />247.20 <br />0.95 slightly <br />clayey <br />siltstone <br />light <br />grey <br />247.20 <br />249.75 <br />2.55 clayey <br />siltstone <br />light <br />grey <br />Rio Tinto Energy America - Colowyo Mine <br />Page <br />178 of 1194 <br />