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TABLE ONE -- DURANGO AND PAGOSA SPRINGS COAL FIELDS <br />MINE NAME LOCATION <br />(county, quadrangle) DATES <br />OF <br />OPERATION SEAM OVERBURDEN <br />THICKNESS THICKNESS <br />(in feet) (in feet) PRODUCTION <br />(in tons) UNIQUE INFORMATION <br />FEATURES SOURCES <br />OK Nos. 1 8 2 La Plata County 1913-1947 4-5' 170,461 R 1,2 <br /> Durango West 1948-1949 <br /> SW,NE,NW <br /> Sec. 22, T35N,R10W <br />Nossaman Archuleta County 1927-1936 2-5' 2,686 1,2 <br />(Pagosa) Jackson Mountain 1921-1924 <br /> SE,SE <br /> Sec. 36, T36N,R1W <br />Peacock Nos. 182 La Plata County 1922-1981 5-6' 76,247 1>2 <br /> Hesperus <br /> SW,SW,NE <br /> Sec. 29, T35N,R11W <br />Peerless La Plata County 1913-1962 5' 66,303 1,2 <br /> Durango West <br /> E/2 SW,NE <br /> Sec. 21, T35N,R10W <br />Perkins 8 La Plata County prior 1907 3 <br />Rookwood Durango East <br /> Specific location <br /> unknown <br /> SE Sec. 7, T35N,R8W <br />Perins Peak La Plata County 1901-1926 1'6"-7'10" 1,2 <br />(Boston) Durango West <br /> SE,NE,NW Sec. 14, <br /> T35N,R10W <br /> also workings in Sec. 11 <br />Pine River La Plata County 1925-1935 5'3" 6,523 1,2 <br /> Ludwig Mountain <br /> $E,NW <br /> Sec. 14, T35N,R7W <br /> - 16 - <br />