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DATES OF <br />MINE NAME LOCATION OPERATION <br />Ideal Unknown 1931-1933 <br /> Sec. 24 <br /> T20S,R70W <br />Jack O'Lantern NE,NW,NE 1921-1932 <br /> Sec. 30 <br /> T20S,R69W <br />L. & C. No. 2 SE,SE,NE 1946-1960 <br />(L. R C.) Sec. 10 <br /> T19S,R70W <br />Last Chance NE,NW,SW 1962-1966 <br />No. 1 Sec. 1 <br /> T20S,R70W <br />Last Chance NW,SE,NW 1966-1971 <br />No. 2 Sec. 2 <br /> T20S,R70W <br />Little Johnny N/2,SE,SW 1934-1939 <br /> Sec. 19 <br /> T20S,R69W <br />Magnet SW,SE,NW 1901-1924 <br />(McNeil) Sec. 19 <br /> T19S,R69W <br />Key to unique features symb ols: <br />Reclamation and/or plans -- Table Two <br />lists hazard abatement work <br />+ Discrepancy between two sources <br />TABLE ONE - FREMONT COUNTY <br />SEAM OVERBURDEN <br />THICKNESS THICKNESS PRODUCTION <br />(IN FEET) (IN FEET) (IN TONS) <br />7,120 <br />3.5'-3.10' 26,684 <br />5.0'-5.7' 44,264 <br />6.0' 49,030 <br />6.0' 50,573 <br />3.5' 15,849 <br />4.5' Included in <br />North Magnet <br />Z Multiple mining zones <br />* Mine opening information <br />S Subsidence features <br />F Mine fires <br />D Mine drainage <br />UNIQUE <br />FEATURES <br />F, Reclamation <br />plans <br />Z <br />INFORMATION <br />SOURCES <br />2,3,10 <br />2,3,10 <br />1,2,3,5,10 <br />1,2,3,10 <br />1,2,3,10 <br />1,2,3,10 <br />1,2,3,10 <br />-23- <br />