Mining
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Black Hills gold rush
The Black Hills gold rush took place in Dakota Territory in the United States. It began in 1874 following the Custer Expedition and reached a peak in 1876–77. Rumors and poorly documented reports of gold in the Black Hills go back to the early 19th century.
California gold rush
The California gold rush (1848–1855) was a gold rush in California, which began on January 24, 1848, when gold was found by James W. Marshall at Sutter's Mill in Coloma, California. The news of gold brought approximately 300,000 people from the rest of the United States and abroad to California, which had recently been conquered from Mexico.
Colorado Silver Boom
The Colorado Silver Boom was a dramatic expansionist period of silver mining activity in the U.S. state of Colorado in the late 19th century. The boom started in 1879 with the discovery of silver at Leadville.
Comstock Lode
The Comstock Lode is a lode of silver ore located under the eastern slope of Mount Davidson, a peak in the Virginia Range in Virginia City, Nevada (then western Utah Territory), which was the first major discovery of silver ore in the United States and named after Canadian miner Henry Comstock.
Cripple Creek Gold Rush
The Cripple Creek Gold Rush was a period of gold production in the Cripple Creek area from the late 1800s until the early 1900s. Mining exchanges were in Cripple Creek, Colorado Springs, Pueblo and Victor. Smelting was in Gillett, Florence, and (Old) Colorado City.
General Mining Act of 1872
The General Mining Act of 1872 is a United States federal law that authorizes and governs prospecting and mining for economic minerals, such as gold, platinum, and silver, on federal public lands.
Gold panning
Gold panning, or simply panning, is a form of placer mining and traditional mining that extracts gold from a placer deposit using a pan. The process is one of the simplest ways to extract gold, and is popular with geology enthusiasts especially because of its low cost and relative simplicity.
Gold rush
A gold rush or gold fever is a discovery of gold—sometimes accompanied by other precious metals and rare-earth minerals—that brings an onrush of miners seeking their fortune.
Homestake Mine (South Dakota)
The Homestake Mine was a deep underground gold mine (8,000 feet or 2,438 m) located in Lead, South Dakota. Until it closed in 2002, it was the largest and deepest gold mine in the Western Hemisphere. The mine produced more than forty million troy ounces (43,900,000 oz; 1,240,000 kg) of gold during its lifetime.
Hydraulic mining
Hydraulic mining is a form of mining that uses high-pressure jets of water to dislodge rock material or move sediment. In the placer mining of gold or tin, the resulting water-sediment slurry is directed through sluice boxes to remove the gold or tin. It is also used in mining kaolin and coal.
Klondike Gold Rush
The Klondike Gold Rush was a migration by an estimated 100,000 prospectors to the Klondike region of Yukon in northwestern Canada, between 1896 and 1898. Gold was discovered there by local miners on August 16, 1896; when news reached Seattle and San Francisco the following year, it triggered a stampede of prospectors.
Nome Gold Rush
The Nome Gold Rush was a gold rush in Nome, Alaska, approximately 1899–1909. It is distinct from other gold rushes by the ease with which the metal could be obtained. Much of the gold was lying in the beach sand of the landing place and could be recovered without any need for a claim.