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DATES OF <br />MINE NAME LOCATION OPERATION <br />Pinnacle SE,NE,SE <br />Sec. 24 <br />T1N,R69W <br />TABLE ONE -BOULDER COUNTY <br />SEAM OVERBURDEN <br />THICKNESS THICKNESS PRODUCTION <br />(IN FEET) (IN FEET) (IN TONS) <br />None reported <br />Pluto SE,NW,NW 1896-1897,1915 <br />(Pluto No. 2) Sec. 24 1896-1897 6.5'-14.0' <br />(New Pluto) T1S,R70W 1930-1933 <br />Premier NW, NE ,NW 1933-1944 3.3'-5.9' <br />Sec. 28 <br />T1S,R70W <br />Rankin Unknown <br />Sec. 1 <br />T1S,R69W <br />Red Ash SW,SW,SE 1916-1925 <br />(Pittsburg) Sec. 15 1926-1952 <br />T1S,R70W <br />Red Ash A2 SE,SW 1916-1925 <br />Sec. 15 <br />T1S,R70W <br />Regal SE ,SE 1935-1947 <br />Sec. 9 <br />T1S,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 />266,505 <br />28,896 <br />None reported <br />5.5'-6.5' 128,867 <br />6.5' 105,854 <br />4.5' 280' 161,117 <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 />S,*,Reclamation <br />INFORMATION <br />SOURCES <br />1,2,3,7,10 <br />1,2,3,5,7,10 <br />2,7 <br />Reclamation plans 2,3,5,7,10 <br />2,3,7,10 <br />1,2,3,7,10 <br />-23- <br />