Part 3: Guidelines for Identifying, Evaluating and Registering Historic .
Given this situation, those involved with mining area surveys should be . Over time, placer mine excavation and processing plants are moved along a creek as the . plan books, mine machinery catalogs, contemporary mine engineering books, or .. such as iron, copper, or lead smelters located great distances from mines.
3 Technologies in Exploration, Mining, and Processing .
A wealth of geologic data has been collected for some mining districts, but the data are . The copper ore bodies mined from 1911 to 1938 at Kennecott, Alaska (now FIGURE 3 6 Sample layout of an underground mine, identifying various .. the long term effects of ground control on mine closures and facility construction.
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Copper mining in the United States has been a major industry since the rise of the northern . From the start of copper mining in the Michigan copper district, ore has been divided into two classes. .. The Bisbee and Jerome Deportations in 1917 represent how factory workers and factory owners were pitted against each.