A History of Gold Dredging in Idaho
Author | : Clark C. Spence |
Publisher | : University Press of Colorado |
Total Pages | : 342 |
Release | : 2016-06-15 |
Genre | : History |
ISBN | : 160732475X |
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.
Geology and Mineral Resources of Box Elder County, Utah
Author | : Hellmut H. Doelling |
Publisher | : Utah Geological Survey |
Total Pages | : 260 |
Release | : 1980 |
Genre | : Geology |
ISBN | : |
Box Elder County displays a variety of lithologic types in each of the major rock divisions: sedimentary, igneous, and metamorphic, in a typical Basin and Range setting. True to the basic structure most of its mountain ranges generally trend north-south, but the Raft River Range trends east-west. Each mountain range exhibits a variety of structural situations: most stratigraphic units are folded and faulted, and many are intruded by igneous rocks. 251 pages + 3 plates
List of Journal Articles by Bureau of Mines Authors
Author | : United States. Bureau of Mines |
Publisher | : |
Total Pages | : 332 |
Release | : 1960 |
Genre | : Mineral industries |
ISBN | : |
List of Journal Articles by Bureau of Mines Authors, with Subject Index
Author | : United States. Bureau of Mines |
Publisher | : |
Total Pages | : 336 |
Release | : 1960 |
Genre | : Mineral industries |
ISBN | : |
List of Journal Articles by Bureau of Mines Authors Published July 1, 1910, to January 1, 1960, with Subject Index
Author | : United States. Bureau of Mines |
Publisher | : |
Total Pages | : 328 |
Release | : 1960 |
Genre | : Mineral industries |
ISBN | : |
Guidelines for Identifying, Evaluating and Registering Historic Mining Properties
Author | : Bruce J. Noble |
Publisher | : |
Total Pages | : 40 |
Release | : 1992 |
Genre | : Government publications |
ISBN | : |