[PDF.82ni] Mining California: An Ecological History

Mining California: An Ecological History

[PDF.cj37] Mining California: An Ecological History

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 | #382986 in Books |  Hill and Wang |  2006-07-25 |  2006-07-25 | Original language:English | PDF # 1 |  8.50 x.58 x5.50l,.65 | File type: PDF | 256 pages

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||0 of 0 people found the following review helpful.| insightful and well-written - I had to use the dictionary ...|By Customer|insightful and well-written - I had to use the dictionary several times - very detailed

some economic views were difficult to comprehend by a lay reader|0 of 0 people found the following review helpful.| It provided some insights to California history that were new

An environmental History of California during the Gold Rush

Between 1849 and 1874 almost $1 billion in gold was mined in California. With little available capital or labor, here's how: high-pressure water cannons washed hillsides into sluices that used mercury to trap gold but let the soil wash away; eventually more than three times the amount of earth moved to make way for the Panama Canal entered California's rivers, leaving behind twenty tons of mercu...

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