GOLDEN AGE MINING CO. Alhambra District. Jefferson County. Minerals Yearbook 1938. Page 351. Nearly all the output from the Alhambra district in 1937 was gold ore from the Callahan mine, operated by the Golden Age Mining Co.
WPA, "Golden Age" (1938). Minerals Yearbook, All. 684.
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Golden Age Mining Company, Alhambra District, Jefferson County, Callahan mine