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The Berkeley Pit is a former open pit copper mine in the western United States, located in Butte, Montana.It is one mile (1.6 km) long by one-half mile (800 m) wide, with an approximate maximum depth of 1,780 feet (540 m).
The Anaconda Copper Mine was a large copper mine in Butte, Montana that closed operations in 1947 and was eventually consumed by the Berkeley Pit, a vast open-pit mine. [1] Originally a silver mine, it was bought for $30,000 in 1881 by an Irish immigrant named Marcus Daly from Michael Hickey, a Civil War veteran, and co-owner Charles X. Larabie ...
Before Butte's formal establishment in 1864, the area consisted of a mining camp that had developed in the early 1860s. [5] The city is in the Silver Bow Creek Valley (or Summit Valley), a natural bowl sitting high in the Rockies straddling the Continental Divide, [6] positioned on the southwestern side of a large mass of granite known as the Boulder Batholith, which dates to the Cretaceous ...
The Anaconda Copper Mining Company, known as the Amalgamated Copper Company from 1899 to 1915, [1] was an American mining company headquartered in Butte, Montana.It was one of the largest trusts of the early 20th century and one of the largest mining companies in the world for much of the 20th century.
Montana Resources LLP is an American mining company with headquarters in Butte, Montana. The company is owned by businessman Dennis Washington as a unit of The Washington Companies. The company employs about 350 people, and operates the Continental mine, an open pit copper and molybdenum mine at Butte.
From being the site of one of the world's most productive copper mines, to one of the nation's largest toxic Superfund sites, Butte has turned a corner in its efforts to reverse a century of ...
Butte is a city in southwestern Montana established as a mining camp in the 1860s in the northern Rocky Mountains straddling the Continental Divide. Butte became a hotbed for silver and gold mining in its early stages, and grew exponentially upon the advent of electricity in the late-nineteenth century due to the land's large natural stores of ...
Stalled work on a major copper mine proposed in central Montana can proceed after the state's Supreme Court ruled Monday that officials had adequately reviewed the project's environmental effects ...