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TABLE ONE -BOULDER COUNTY <br /> SEAM OVERBURDEN <br /> DATES OF THICKNESS THICKNESS PRODUCTION UNIQUE INFORMATION <br />MINE NAME LOCATION OPERATION (IN FEET) (IN FEET) (IN TONS) FEATURES SOURCES <br />Square Deal Unknown 1923 9.0' 1,990 2,3,7,10 <br />Standard SE,SE,NE None reported Ref .1 -notes 1,2,7 <br />(Progress) and as two separate <br /> SW,SW,NE . mines <br /> Sec. 14 <br /> T1N,R69W <br />Standard NE,SE 1887-1893, 5.5'-8.0' 320'+ 2,391,603 Gas explosion(1908) 1,2,3,7,10 <br /> Sec. 1 1905-1937 <br /> T1S,R69W <br />Star NW 1883-1892, 75'+ 110,973 i,2,3,7,iO <br /> Sec. 13 1918-1921 <br />(New Star) T1N,R69W 4.8'-5.5' <br />(Arrow) 1933-1935 <br />(Cresent) 1905 <br />Stewart NW,NE,NE 1883-1892, 4.3'-5.5' 244,610 1,2,3,7,10 <br />(Lister) Sec. 24 1894-1902 <br /> T1N,R69W <br />Strathmore NW,NW,SW 1901-1919 12.0' 130'+ 435,433 S, three beds worked 1,2,3,7,10 <br /> Sec. 2 (unknown names) <br /> T1S,R69W <br />Key to uniq ue features symbols: Z Multiple mining zones <br /> * Mine opening informat ion <br />Reclamatign and/or plans -- Table Two S Subsidence features <br />lists hazard abatement work F Mine fires -26- <br />+ Discrepa ncy between two` <br />1 sources D Mine drainage <br /> <br />