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From <br />To <br />Seam <br />Thickness Lithologic Qualifiers <br />Lithology Type Shade Color <br />0.00 <br />21.00 <br />21.00 <br />undifferentiated stone <br />21.00 <br />21.00 <br />OXID <br />0.00 <br />undifferentiated stone <br />21.00 <br />22.00 <br />1.00 <br />undifferentiated stone <br />22.00 <br />23.10 <br />Y45 <br />1.10 <br />coal <br />23.10 <br />39.50 <br />16.40 <br />undifferentiated stone <br />39.50 <br />40.40 <br />Y35 <br />0.90 <br />coal <br />40.40 <br />70.00 <br />29.60 <br />undifferentiated stone <br />70.00 <br />85.00 <br />SY25 <br />15.00 <br />sandstone <br />85.00 <br />130.80 <br />45.80 <br />undifferentiated stone <br />130.80 <br />134.50 <br />Y25 <br />3.70 <br />coal <br />134.50 <br />147.00 <br />12.50 <br />undifferentiated stone <br />147.00 <br />174.00 <br />SY15 <br />27.00 <br />sandstone <br />174.00 <br />175.80 <br />1.80 <br />undifferentiated stone <br />175.80 <br />177.10 <br />Y15 <br />1.30 <br />coal <br />177.10 <br />180.40 <br />3.30 <br />undifferentiated stone <br />180.40 <br />183.10 <br />X3 <br />2.70 <br />coal <br />183.10 <br />199.00 <br />15.90 <br />undifferentiated stone <br />199.00 <br />202.40 <br />X4 <br />3.40 <br />coal <br />202.40 <br />210.00 <br />7.60 <br />undifferentiated stone <br />210.00 <br />260.00 <br />SA1 <br />50.00 <br />sandstone <br />260.00 <br />299.80 <br />39.80 <br />undifferentiated stone <br />299.80 <br />301.80 <br />Al <br />2.00 <br />coal <br />301.80 <br />325.00 <br />23.20 <br />undifferentiated stone <br />325.00 <br />326.80 <br />131 <br />1.80 <br />coal <br />326.80 <br />329.80 <br />3.00 <br />undifferentiated stone <br />329.80 <br />331.20 <br />B2 <br />1.40 <br />coal <br />331.20 <br />346.20 <br />15.00 <br />undifferentiated stone <br />346.20 <br />348.00 <br />B3 <br />1.80 <br />coal <br />348.00 <br />377.40 <br />29.40 <br />undifferentiated stone <br />377.40 <br />379.50 <br />C3 <br />2.10 <br />coal <br />379.50 <br />383.50 <br />C5 <br />4.00 <br />coal <br />383.50 <br />385.90 <br />C7 <br />2.40 <br />coal <br />385.90 <br />407.60 <br />21.70 <br />undifferentiated stone <br />407.60 <br />412.00 <br />D1 <br />4.40 <br />coal <br />412.00 <br />418.80 <br />D2 <br />6.80 <br />coal <br />418.80 <br />432.70 <br />13.90 <br />undifferentiated stone <br />432.70 <br />434.00 <br />ZZ <br />1.30 <br />coal <br />. <br />434.00 <br />435.00 <br />1.00 <br />undifferentiated stone <br />Rio Tinto Energy America - Colowyo Mine <br />Page 45 of 1194 <br />