![](http://www.alamy.com/thumbs/6/6B2CCE50-78A8-4258-AE99-E51C2C3D9F1D/EX6W6C.jpg)
Photograph shows reservoirs used for mining placer gold at Columbia, Tuolumne County, California. Dated 1866
Size: 5117px × 4098px
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Photo credit: © World History Archive / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: 19th, archival, archive, california, century, columbia, county, early, gold, historical, history, industry, mining, photograph, photography, placer, reservoir, reservoirs, shows, tuolumne