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0 Drill Hole Lithology Summary <br />Dril H ole E asting Northing Colla T otal D epth T Range Section File <br />UL -95 -18 <br />1, 326, 394.00 <br />347, 096.30 7,799.90 600.00 <br />3A <br />Adjusted Depths <br />From <br />To <br />Seam <br />Thickness Lithologic Qualifiers <br />Lithology Type <br />Shade Color <br />0.00 <br />28.60 <br />28.60 <br />undifferentiated stone <br />28.60 <br />28.60 <br />OXID <br />0.00 <br />undifferentiated stone <br />28.60 <br />31.20 <br />2.60 <br />undifferentiated stone <br />31.20 <br />39.80 <br />X3 <br />8.60 <br />coal <br />39.80 <br />42.30 <br />X4 <br />2.50 <br />coal <br />42.30 <br />95.80 <br />53.50 <br />undifferentiated stone <br />95.80 <br />97.20 <br />Al <br />1.40 <br />coal <br />97.20 <br />122.00 <br />24.80 <br />undifferentiated stone <br />122.00 <br />124.00 <br />B1 <br />2.00 <br />coal <br />124.00 <br />131.00 <br />7.00 <br />undifferentiated stone <br />131.00 <br />132.50 <br />B2 <br />1.50 <br />coal <br />132.50 <br />136.50 <br />B2 <br />4.00 <br />coal <br />136.50 <br />137.20 <br />0.70 <br />undifferentiated stone <br />137.20 <br />139.50 <br />B3 <br />2.30 <br />coal <br />139.50 <br />155.30 <br />15.80 <br />undifferentiated stone <br />• <br />155.30 <br />156.10 <br />156.10 <br />171.50 <br />C3 <br />0.80 <br />15.40 <br />coal <br />undifferentiated stone <br />171.50 <br />172.70 <br />C5 <br />1.20 <br />coal <br />172.70 <br />186.80 <br />14.10 <br />undifferentiated stone <br />186.80 <br />188.00 <br />C7 <br />1.20 <br />coal <br />188.00 <br />220.50 <br />32.50 <br />undifferentiated stone <br />220.50 <br />223.50 <br />D1 <br />3.00 <br />coal <br />223.50 <br />232.00 <br />D2 <br />8.50 <br />coal <br />232.00 <br />237.50 <br />5.50 <br />undifferentiated stone <br />237.50 <br />262.50 <br />SE2 <br />25.00 <br />sandstone <br />262.50 <br />264.40 <br />1.90 <br />undifferentiated stone <br />264.40 <br />270.70 <br />E2 <br />6.30 <br />coal <br />270.70 <br />277.20 <br />6.50 <br />undifferentiated stone <br />277.20 <br />281.10 <br />F1 <br />3.90 <br />coal <br />281.10 <br />282.00 <br />0.90 <br />undifferentiated stone <br />282.00 <br />283.50 <br />ZZ <br />1.50 <br />coal <br />283.50 <br />292.00 <br />8.50 <br />undifferentiated stone <br />292.00 <br />355.00 <br />SF3 <br />63.00 <br />sandstone <br />355.00 <br />360.00 <br />SF3 <br />5.00 <br />undifferentiated stone <br />360.00 <br />365.00 <br />SF3 <br />5.00 <br />sandstone <br />365.00 <br />381.30 <br />16.30 <br />undifferentiated stone <br />381.30 <br />386.30 <br />F5 <br />5.00 <br />coal <br />0 ' <br />386.30 <br />386.90 <br />0.60 <br />undifferentiated stone <br />Rio Tinto Energy America - Colowyo Mine <br />Page 1158 of 1194 <br />