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LOCATION <br /> (county, <br />MINE NAME quadrangle) <br />Ford Garfield Co. <br />(Long) Rio Blanco <br /> SW,NW,Sec.3 <br /> T4S,R94W <br />Harvey Gap Garfield Co. <br />(Old) Silt <br /> SW,NE,Sec.24 <br /> T5S,R92W <br />Harvey Gap Garfield Co. <br />No. 2 Silt <br />(Le Donne) NE,NE,Sec.24 <br />(Dean ?) T5S,R92W <br /> Also working <br /> NW,NW,Sec.19 <br />Harvey Gap Garfield Co. <br />No. 3 Silt <br /> NW,NE,Sec.24 <br /> T5S,R92W <br />I.H.I. No.l Garfield Co. <br />Valley View) Silt <br />Ingle No. 1) NE,NE,Sec.17 <br /> T5S,R92W <br />TABLE ONE - HOGBACK REGION <br />SEAM OVERBURDEN <br />DATES OF THICKNESS THICKNESS PRODUCTION <br />OPERATION (IN FEET) (IN FEET) (IN TONS) <br />1929-1933 3.5' 100' 514 <br />1913-1926 <br />1931-1955 <br />1934-1939 <br />1956-1968 <br />1936-1945 <br />1936 <br />6.0' <br />5.0'-11.0' <br />6.0'-8.0' <br />9.0' <br />17,478 <br />48,886 <br />11,765 <br />11,068 <br />Key to unique features symbols: Z Multiple minine zones <br />* Mine opening information <br />Reclamation and/or plans -- Table Two S Subsidence features <br />lists hazard abatement work F Mine fires <br />+ Discrepancy between two sources D Mine drainage <br />UNIQUE <br />FEATURES <br />S <br />S,F,Reclamation <br />Z <br />Z <br />INFORMATION <br />SOURCES <br />1,2,5,6 <br />1,2,3,5,6 <br />1,2,5,6 <br />1,2,5,6 <br />1,2,5,6 <br />8 <br />