Search results
Results From The WOW.Com Content Network
Bunker Hill Mining & Metallurgical: Shoshone: The Coeur d'Alene River basin contains millions of tons of mine tailings, waste rock and ore concentrates. Soil, sediments, groundwater and surface water are contaminated with heavy metals including cadmium, lead and zinc from former mining and smelting operations. [12] [13] 12/30/1982: 09/08/1983
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 ...
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 ...
The Barneys Canyon mine in Salt Lake County, the last primary gold mine to operate in Utah, stopped mining in 2001, but is still recovering gold from its heap leaching pads. Utah gold production was 460,000 troy ounces (14,000 kg) in 2006.
There are over 15,000 lakes in Wisconsin. Of these, about 40 percent have been named. Excluding Lake Michigan and Lake Superior, Lake Winnebago is the largest lake by area, largest by volume and the lake with the longest shoreline. The deepest lake is Wazee Lake, at 350 feet (107 meters). The deepest natural lake is Green Lake, at
In Oregon travelers could now reach the Eagle Valley and Pine Valley areas, and the gold mines in Auburn. [2] [3] [4] The cutoff rejoined the main Oregon Trail at the Powder River, near Baker City. [5] [6] In 1852, John Jeffrey began promoting a trail following traditional Shoshoni paths in order to generate business for his ferry on the ...
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]
Crandon mine was a mine proposed for northeastern Wisconsin, USA.It was to be situated near the town of Crandon and the Mole Lake Ojibwe Reservation in Forest County.The mine was the center of a multi-decade political and regulatory battle between environmentalists, American Indian tribes, sportfishing groups, and the State of Wisconsin and several large mining corporations.