Breckenridge, Colorado Booming Breckenridge. Colorado Miner 1880 From Blue river. RMN Mar. 7, 1861 p.2 c.2-3 From Blue river. RMN Apr. 30, 1861 p.2 c "From Breckenridge ," notes. , 1861 p.2 c.1 The new gold strike. Republican . July 17, 1884 p.2 c.3 Mining developments. Western Investors Review v.15 1909 p.11 s
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