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Drill Hole Lithology Summary <br />Drill Hole Fasting N o r thing Collar Total Depth Township Range Section File <br />C - 04 - 34 1, 333, 609.17 347, 362.13 7,29 74 5.00 T0 R94W 1 5B <br />Adjusted Depths <br />From To Seam Thickness Lithologic Qualifiers Lithology Type Shade Color <br />• <br />1 � <br />u <br />701.00 <br />702.00 <br />ZZ <br />1.00 <br />coal <br />black <br />702.00 <br />702.10 <br />ZZ <br />0.10 <br />siltstone <br />702.10 <br />703.70 <br />ZZ <br />1.60 <br />coal <br />black <br />703.70 <br />704.83 <br />1.13 <br />carbonaceous mudston <br />dark <br />grey /bro <br />704.83 <br />709.60 <br />4.77 <br />carbonaceous mudston <br />dark <br />grey /bro <br />709.60 <br />710.00 <br />0.40 <br />boney coal <br />dark <br />grey /bro <br />710.00 <br />710.54 <br />K5 <br />0.54 <br />rashy coal <br />black <br />710.54 <br />713.70 <br />K5 <br />3.16 <br />coal <br />713.70 <br />715.40 <br />1.70 <br />siltstone <br />dark <br />grey <br />715.40 <br />718.65 <br />3.25 <br />interbedded <br />siltstone /mudstone <br />dark <br />grey <br />718.65 <br />719.70 <br />1.05 <br />carbonaceous mudston <br />dark <br />grey /bro <br />719.70 <br />721.60 <br />KM <br />1.90 <br />tuff /tonstien <br />buff <br />721.60 <br />724.70 <br />K7 <br />3.10 <br />coal <br />black <br />724.70 <br />725.40 <br />K7 <br />0.70 <br />carbonaceous shale <br />dark <br />grey /bro <br />725.40 <br />727.00 <br />K7 <br />1.60 <br />bright <br />blocky <br />coal <br />black <br />727.00 <br />727.80 <br />0.80 <br />carbonaceous mudston <br />dark <br />grey /bro <br />727.80 <br />731.20 <br />K9 <br />3.40 <br />bright <br />blocky <br />coal <br />black <br />731.20 <br />731.70 <br />K9 <br />0.50 <br />rashy coal <br />731.70 <br />734.77 <br />3.07 <br />carbonaceous mudston <br />dark <br />grey /bro <br />734.77 <br />736.31 <br />1.54 <br />carbonaceous shale <br />dark <br />grey /bro <br />736.31 <br />740.10 <br />3.79 <br />sandy <br />siltstone <br />dark <br />grey <br />740.10 <br />744.20 <br />L3 <br />4.10 <br />bright <br />brittle <br />coal <br />black <br />744.20 <br />745.00 <br />0.80 <br />undifferentiated stone <br />Rio Tinto Energy America - Colowyo Mine Page 389 of 1194 <br />