ANACONDA COPPER MINING Company. Butte District. Silver Bow County. Minerals Yearbook 1941. Page 362. Only important copper producer in Monatana; 2,869,051 tons of copper ore shipped to mills; 36,596 tons crude ore and 32,881 tons of old tailings shipped direct to smelter.
WPA, "Anaconda Copper Mining Co." (1941). Minerals Yearbook, All. 17.
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Minerals Yearbook, Anaconda Copper, Butte District, Silver Bow, copper ore, tailings, smelter, crude