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LOCATION <br />(county, DATES OF <br />MINE NAME quadrangle) OPERATION <br />Unknown Routt Co. <br />Mt. Harris <br />SE,SE,Sec.35 <br />T6N,R88W <br />Unknown Moffat Co. <br />Round Bottom <br />SW,NW,NW,SE <br />Sec. 36 <br />T6N,R92W <br />Unknown Routt Co. <br />Mt. Harris <br />SE,Sec. 34 <br />T6N,R87W <br />Wadge Routt Co. 1917-1951 <br />Nos. 1,2 Mt. Harris <br />(International S/2,NW,Sec.15 <br />Nos. 1,2) Also Sec.9,10 <br />T6N,R87W <br />Waite Moffat Co. 1919-1921 <br />Castor Gulch <br />No specific location <br />NE,SE,Sec.33,34 <br />T6N,R91W <br />Key to unique features symbols: <br />Reclamation and/or plans -- Table Two <br />lists hazard abatement work <br />+ Discrepancy between two sources <br />TABLE ONE - YAMPA VALLEY <br />SEAM OVERBURDEN <br />THICKNESS THICKNESS PRODUCTION <br />(IN FEET) (IN FEET) (IN TONS) <br />8.5' <br />9.0' <br />Z Multiple mining zones <br />* Mine opening information <br />S Subsidence features <br />F Mine Fires <br />D Mine Drainage <br />1,020 <br />UNIQUE INFORMATION <br />FEATURES SOURCES <br />1 <br />1 <br />1,7 <br />Z, Gas explosion 1,2,6 <br />(1942 ) <br />1,2,6 <br />30 <br />none <br />reported <br />400'-500' 2,192,362 <br /> <br />