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Rio Tinto Energy America - Colowyo Mine Page 1117 of 1194 <br />From <br />To <br />Seam <br />Thickness Lithologic Qualifiers <br />Lithology Type Shade Color <br />778.40 <br />780.10 <br />H4 <br />1.70 <br />coal <br />780.10 <br />788.00 <br />7.90 <br />undifferentiated stone <br />788.00 <br />814.60 <br />SH6 <br />26.60 <br />sandstone <br />814.60 <br />819.00 <br />H6 <br />4.40 <br />coal <br />819.00 <br />825.00 <br />6.00 <br />undifferentiated stone <br />825.00 <br />849.30 <br />24.30 <br />sandstone <br />849.30 <br />850.80 <br />ZZ <br />1.50 <br />coal <br />850.80 <br />856.20 <br />5.40 <br />undifferentiated stone <br />856.20 <br />860.30 <br />H8 <br />4.10 <br />coal <br />860.30 <br />872.30 <br />12.00 <br />undifferentiated stone <br />872.30 <br />873.30 <br />ZZ <br />1.00 <br />coal <br />873.30 <br />906.00 <br />32.70 <br />undifferentiated stone <br />906.00 <br />933.00 <br />S13U <br />27.00 <br />sandstone <br />933.00 <br />939.00 <br />6.00 <br />undifferentiated stone <br />939.00 <br />941.00 <br />13 <br />2.00 <br />coal <br />941.00 <br />952.00 <br />11.00 <br />undifferentiated stone <br />952.00 <br />959.00 <br />15 <br />7.00 <br />coal <br />959.00 <br />970.00 <br />11.00 <br />undifferentiated stone <br />970.00 <br />971.00 <br />ZZ <br />1.00 <br />coal <br />971.00 <br />971.50 <br />0.50 <br />undifferentiated stone <br />971.50 <br />974.60 <br />17 <br />3.10 <br />coal <br />974.60 <br />1019.90 <br />45.30 <br />undifferentiated stone <br />1019.90 <br />1022.00 <br />J2 <br />2.10 <br />coal <br />1022.00 <br />1023.30 <br />1.30 <br />undifferentiated stone <br />1023.30 <br />1027.20 <br />J4 <br />3.90 <br />coal <br />1027.20 <br />1030.60 <br />J6 <br />3.40 <br />coal <br />1030.60 <br />1037.30 <br />6.70 <br />undifferentiated stone <br />1037.30 <br />1038.50 <br />J8 <br />1.20 <br />coal <br />1038.50 <br />1067.60 <br />29.10 <br />undifferentiated stone <br />1067.60 <br />1070.50 <br />K5 <br />2.90 <br />coal <br />1070.50 <br />1075.40 <br />KM <br />4.90 <br />clay <br />1075.40 <br />1076.90 <br />K7 <br />1.50 <br />coal <br />1076.90 <br />1080.20 <br />3.30 <br />undifferentiated stone <br />1080.20 <br />1081.70 <br />K9 <br />1.50 <br />coal <br />1081.70 <br />1083.00 <br />1.30 <br />undifferentiated stone <br />1083.00 <br />1084.00 <br />ZZ <br />1.00 <br />coal <br />1084.00 <br />1110.00 <br />26.00 <br />undifferentiated stone <br />1110.00 <br />1181.00 <br />SI-3 <br />71.00 <br />sandstone <br />Rio Tinto Energy America - Colowyo Mine Page 1117 of 1194 <br />