Mining historian Kerby Jackson introduces us to a classic mining work in this important re-issue of the California Bureau of Mines publication “The Mines and Mineral Resources of El Dorado, Placer, Sacramento and Yuba Counties, California”. Originally published in 1917, this important publication on California Mining has not been available for nearly a century. This publication includes important information on the early gold mines of El Dorado County, Placer County, Sacramento County and Yuba County, which were some of the first gold fields mined by the Forty-Niners during the California Gold Rush. Included are not only details on early mining methods in the area, production statistics and geological information, but also the location of the early gold mines that helped make California “The Golden State”. Also included are insights into the early mining of chrome, copper and other minerals in this important mining area. Note: This edition is a perfect facsimile of the original edition and is not set in a modern typeface. As such, some type characters and images might suffer from slight imperfections or minor shadows in the page background.