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The Dredging Of Gold Placers
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Book Synopsis A History of Gold Dredging in Idaho by : Clark C. Spence
Download or read book A History of Gold Dredging in Idaho written by Clark C. Spence and published by University Press of Colorado. This book was released on 2016-06-15 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: "A revolution in placer mining from inception in the 1880s until its demise in the 1960s and its impact on Idaho, the nation's fourth leading producer of dredged gold which provides a lens through which to observe the practice and history of gold dredging around the world"--
Book Synopsis A History of Gold Dredging in Idaho by : Clark C. Spence
Download or read book A History of Gold Dredging in Idaho written by Clark C. Spence and published by University Press of Colorado. This book was released on with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: A History of Gold Dredging in Idaho tells the story of a revolution in placer mining—and its subsequent impact on the state of Idaho—from its inception in the early 1880s until its demise in the early 1960s. Idaho was the nation’s fourth-leading producer of dredged gold after 1910 and therefore provides an excellent lens through which to observe the practice and history of gold dredging. Author Clark Spence focuses on the two most important types of dredges in the state—the bucket-line dredge and the dragline dredge—and describes their financing, operation, problems, and effect on the state and environment. These dredges made it possible to work ground previously deemed untouchable because bedrock where gold collected could now be reached. But they were also highly destructive to the environment. As these huge machines floated along, they dumped debris that harmed the streams and destroyed wildlife habitat, eventually prompting state regulations and federal restoration of some of the state’s crippled waterways. Providing a record of Idaho’s dredging history for the first time, this book is a significant contribution to the knowledge and understanding of Western mining, its technology, and its overall development as a major industry of the twentieth century.
Book Synopsis The Dredging of Gold Placers by : John Ernest Hodgson
Download or read book The Dredging of Gold Placers written by John Ernest Hodgson and published by . This book was released on 1911 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Gold Placer Mining by : C. M. Romanowitz
Download or read book Gold Placer Mining written by C. M. Romanowitz and published by . This book was released on 1970 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Dredging of Gold Placers (Classic Reprint) by : John Ernest Hodgson
Download or read book The Dredging of Gold Placers (Classic Reprint) written by John Ernest Hodgson and published by . This book was released on 2015-07-21 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Dredging of Gold Placers During the past two years the writer has contributed to English and American periodicals several articles, dealing with the phase of mining to which the following pages are devoted. Some interest appears to have been aroused among both mining men and the lay public by these articles, and the wish has often been expressed that they should be incorporated in one volume. This book is an attempt to meet that desire. The industry is a comparatively new one, and the views of dredging men in regard to many questions, both of construction and design, are still in a state of flux. This book is offered to the world, therefore, not by any means as a technical work, but in the sincere hope that it will help and interest company directors, property managers, prospectors, and those of the investing public who have acquired, or think of acquiring, a share interest in a gold-dredging concern. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Book Synopsis The History and Development of Gold Dredging in Montana by : Hennen Jennings
Download or read book The History and Development of Gold Dredging in Montana written by Hennen Jennings and published by . This book was released on 1916 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Northern Gold Fleet by : Clark C. Spence
Download or read book The Northern Gold Fleet written by Clark C. Spence and published by University of Illinois Press. This book was released on 1996 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Northern Gold Fleet is the story of how new gold-dredging technology was applied to the rich placers of the Far North from 1899 to the present, leading to mass production and economies of scale that made previously unprofitable resources profitable. The bucket-ladder dredge was a single, complex apparatus that rivaled ocean freighters in size. At once ugly, spectacular, and awesome, the dredges dug, classified materials, and performed gold-saving and tailing-disposal functions. A richly illustrated and comprehensive history. The Northern Gold Fleet is part environmental, part technological, part corporate, part labor, and part Alaskan in its thrust, offering a picture - both dazzling and absorbing - of how new technology simultaneously helped build the economy and lay waste the resources of Alaska.
Book Synopsis Gold Dredging by : Cecil Clement Longridge
Download or read book Gold Dredging written by Cecil Clement Longridge and published by . This book was released on 1905 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Gold Dredging, the New Industrial by : Henry Stanhope Bunting
Download or read book Gold Dredging, the New Industrial written by Henry Stanhope Bunting and published by . This book was released on 1903 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Gold Dredging in the United States (Classic Reprint) by : Charles Janin
Download or read book Gold Dredging in the United States (Classic Reprint) written by Charles Janin and published by . This book was released on 2015-07-21 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Gold Dredging in the United States Types of hand drills; Empire drill; New type of light power drill; Determining period of dredging project; Selection of dredge for a given project; Use of unusual type of drill in Alaska; Details of construction of gold dredges; Determining suitable size of dredge; Bucket line and tumblers; Pins; Lower tumbler; Upper tumbler; Main drive; Winches; Ladder-hoist winch; Swing winch; Spuds and spud supports; Hulls and superstructures; Bow gantry; Ladder rollers and bearings; Main hopper, save-all, and bucket idlers; Screen and screen drive; Distributor; Stacker; Belts; Guide rollers; Wire ropes; General details of dredge construction; Special steels for dredge parts; Properties of alloys of steel; Manganese steel; Nickel steel; Nickel-chrome steel; High-carbon steel; Electrical equipment on dredges; Bucket-drive motor; Power consumption by electrical equipment; Recent type of direct-connected motor drive; Kind of electric current used; Voltage of current used on dredges; Rebuilt dredges; Feasibility of moving dredges or machinery; Examples of second use of dredges or machinery; Tin Cup dredge; Scott River dredge; Butte dredge; El Oro No. 1 dredge; Dredge near Leadville, Colo; Castle Creek dredge; Feature to be considered in removal of dredging equipment; Other examples of moving dredge; Operation of gold dredges; Essentials of dredge operation; Ample spare parts should be available About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Book Synopsis The Dredging of Gold Placers by : John Ernest Hodgson
Download or read book The Dredging of Gold Placers written by John Ernest Hodgson and published by . This book was released on 1911 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Business of Gold Dredging by : New York Engineering Company
Download or read book The Business of Gold Dredging written by New York Engineering Company and published by . This book was released on 1922 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Dredging of Gold Placers by : John Ernest Hodgson
Download or read book The Dredging of Gold Placers written by John Ernest Hodgson and published by Legare Street Press. This book was released on 2022-10-27 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Book Synopsis Studies of Suction Dredge Gold-placer Mining Operations Along the Fortymile River, Eastern Alaska by : Richard B. Wanty
Download or read book Studies of Suction Dredge Gold-placer Mining Operations Along the Fortymile River, Eastern Alaska written by Richard B. Wanty and published by . This book was released on 1997 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A History of Gold Dredging in Idaho by : Clark C. Spence
Download or read book A History of Gold Dredging in Idaho written by Clark C. Spence and published by University Press of Colorado. This book was released on 2016-06-15 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: A History of Gold Dredging in Idaho tells the story of a revolution in placer mining—and its subsequent impact on the state of Idaho—from its inception in the early 1880s until its demise in the early 1960s. Idaho was the nation’s fourth-leading producer of dredged gold after 1910 and therefore provides an excellent lens through which to observe the practice and history of gold dredging. Author Clark Spence focuses on the two most important types of dredges in the state—the bucket-line dredge and the dragline dredge—and describes their financing, operation, problems, and effect on the state and environment. These dredges made it possible to work ground previously deemed untouchable because bedrock where gold collected could now be reached. But they were also highly destructive to the environment. As these huge machines floated along, they dumped debris that harmed the streams and destroyed wildlife habitat, eventually prompting state regulations and federal restoration of some of the state’s crippled waterways. Providing a record of Idaho’s dredging history for the first time, this book is a significant contribution to the knowledge and understanding of Western mining, its technology, and its overall development as a major industry of the twentieth century.
Book Synopsis The Dredging of Gold Placers. [With Illustrations.]. by : John Ernest HODGSON (F.R.G.S.)
Download or read book The Dredging of Gold Placers. [With Illustrations.]. written by John Ernest HODGSON (F.R.G.S.) and published by . This book was released on 1911 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Conrey Placer Mining Company by : Clark C. Spence
Download or read book The Conrey Placer Mining Company written by Clark C. Spence and published by . This book was released on 1989 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: This historic mining company experimented with massive equipment and innovative techniques to dig millions of dollars in gold out of Alder Gulch.
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