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  2. Gold cyanidation ban - Wikipedia

    en.wikipedia.org/wiki/Gold_cyanidation_ban

    In 1998 Mono County in California effectively banned the usage of cyanide and other chemicals for mining or processing ore through a county ordinance., The US state of Montana banned open pit heap leaching and vat leaching using cyanide for gold mining following a citizen's initiative, Initiative 137, proposed by the Montana Environmental Information Center that was approved through a ...

  3. Flambeau Mine - Wikipedia

    en.wikipedia.org/wiki/Flambeau_Mine

    Flambeau Mine map. The Flambeau Mine was an open pit mine of a copper-gold deposit near the Flambeau River, south of Ladysmith, Wisconsin, United States. It was mined by a subsidiary of Kennecott Minerals between 1993 and 1997, and returned to a fairly natural state after. As of 2022, it was "the only example of a metallic mine that was ...

  4. Gold mining in the United States - Wikipedia

    en.wikipedia.org/wiki/Gold_mining_in_the_United...

    Although gold mines are spread over much of Oregon, almost all of the gold produced has come from two principal areas: the Klamath Mountains in southwest Oregon, including Coos, Curry, Douglas, Jackson and Josephine counties; and the Blue Mountains in northeast Oregon, mostly in Baker and Grant counties.

  5. Stibnite Mining District - Wikipedia

    en.wikipedia.org/wiki/Stibnite_Mining_District

    A specimen of stibnite. The Stibnite Mining District sits atop the Idaho Batholith, one of the signature features of Idaho’s unique geology.The Idaho Batholith is nearly 14,000 square miles (36,000 km 2) of granite, formed from the collision of the oceanic plate and the North American Plate around 100 million years ago during the Cretaceous period. [10]

  6. Recreational gold mining - Wikipedia

    en.wikipedia.org/wiki/Recreational_gold_mining

    Gold pans and shovels are commonly allowed, but sluice boxes and suction dredges may be prohibited in some areas. [12] [13] There are public mining areas in many states, and prospecting may allow one to stake a gold placer claim or other type of mining claim in certain areas. Some public lands have been set aside for recreational gold panning.

  7. These are the wealthiest — and poorest — counties in Idaho ...

    www.aol.com/wealthiest-poorest-counties-idaho...

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  8. General Mining Act of 1872 - Wikipedia

    en.wikipedia.org/wiki/General_Mining_Act_of_1872

    "My claim, Sir!" A prospector defends his claim at the Comstock Lode, 1861.. Miners and prospectors in the California Gold Rush of 1849 found themselves in a legal vacuum. . Although the US federal government had laws governing the leasing of mineral land, the United States had only recently acquired California by the Treaty of Guadalupe Hidalgo, and had little presence in the newly acquired ...

  9. Wisconsin’s new 2025 laws mostly technical, obscure - AOL

    www.aol.com/news/wisconsin-2025-laws-mostly...

    In Wisconsin, however, many new laws become effective as soon as the governor signs them. That means 2025 will not kick off with a wave of new rules. Wisconsin, instead, will see some technical ...