Reducere. A reprint of the Original US Geological Survey Bulletin 1355. This publication is a catalog of locations, Geology, and production from the placer d...
Reducere. Arizona Gold Placers and Placering was published by the Arizona Bureau of Mines in conjunction with University of Arizona as Bulletin 118 in 1922 a...
Reducere. Lode Gold Mines of the Alleghany - Downieville Area, Sierra County, California. - Probably one of the best known areas for Gold in all of Californi...
Reducere. Gold and Silver in Oregon is the de facto standard on Gold and Silver Mining in Oregon. This rare book was originally published in 1968 by the Stat...
Reducere. DescriptionWhat's Inside? The only smelting information currently available. A complete plain English step-by-step guide for the amateur or profess...