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From <br />To <br />Seam <br />Thickness Lithologic Qualifiers <br />Lithology Type Shade Color <br />462.00 <br />473.00 <br />11.00 <br />undifferentiated stone <br />473.00 <br />488.00 <br />SF1 <br />15.00 <br />sandstone <br />488.00 <br />508.70 <br />20.70 <br />undifferentiated stone <br />508.70 <br />512.50 <br />F1 <br />3.80 <br />coal <br />512.50 <br />541.00 <br />28.50 <br />undifferentiated stone <br />541.00 <br />552.00 <br />SF3U <br />11.00 <br />sandstone <br />552.00 <br />560.00 <br />8.00 <br />undifferentiated stone <br />560.00 <br />567.00 <br />SF3L <br />7.00 <br />sandstone <br />567.00 <br />568.80 <br />1.80 <br />undifferentiated stone <br />568.80 <br />571.20 <br />F3 <br />2.40 <br />coal <br />571.20 <br />600.20 <br />29.00 <br />undifferentiated stone <br />600.20 <br />603.00 <br />F5 <br />2.80 <br />coal <br />603.00 <br />603.50 <br />0.50 <br />undifferentiated stone <br />603.50 <br />605.80 <br />F6 <br />2.30 <br />coal <br />605.80 <br />612.00 <br />6.20 <br />undifferentiated stone <br />612.00 <br />647.00 <br />SFA <br />35.00 <br />sandstone <br />• <br />647.00 <br />660.60 <br />13.60 <br />undifferentiated stone <br />660.60 <br />663.10 <br />FA <br />2.50 <br />coal <br />663.10 <br />670.70 <br />FB <br />7.60 <br />coal <br />670.70 <br />671.90 <br />1.20 <br />undifferentiated stone <br />671.90 <br />677.20 <br />G7 <br />5.30 <br />coal <br />677.20 <br />681.10 <br />G8 <br />3.90 <br />coal <br />681.10 <br />684.00 <br />2.90 <br />undifferentiated stone <br />684.00 <br />690.00 <br />G9 <br />6.00 <br />coal <br />690.00 <br />691.30 <br />GA <br />1.30 <br />coal <br />691.30 <br />695.00 <br />3.70 <br />undifferentiated stone <br />695.00 <br />698.00 <br />GB <br />3.00 <br />coal <br />698.00 <br />700.20 <br />2.20 <br />undifferentiated stone <br />700.20 <br />701.10 <br />ZZ <br />0.90 <br />coal <br />701.10 <br />705.00 <br />3.90 <br />undifferentiated stone <br />705.00 <br />736.00 <br />SGCU <br />31.00 <br />sandstone <br />736.00 <br />738.70 <br />GC <br />2.70 <br />coal <br />738.70 <br />740.50 <br />1.80 <br />undifferentiated stone <br />740.50 <br />741.50 <br />HO <br />1.00 <br />coal <br />741.50 <br />759.00 <br />17.50 <br />undifferentiated stone <br />759.00 <br />761.90 <br />H2 <br />2.90 <br />coal <br />761.90 <br />768.00 <br />6.10 <br />undifferentiated stone <br />• <br />768.00 <br />778.40 <br />SH4 <br />10.40 <br />sandstone <br />Rio Tinto Energy America - Colowyo Mine <br />Page 1116 of 1194 <br />