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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 ...
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.
ARCO closed the Berkeley Pit and shut off the deep pumps in 1982, allowing the pit and mines to fill with water. The Continental Pit, the last active Anaconda mining property in Butte, was closed in 1982, but resumed mining in the early 2000's. Six years after ARCO acquired rights to the "Richest Hill on Earth", Butte's mines were completely idle.
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Anaconda ceased mining at the Continental Pit in 1983. Montana Resources LLP bought the property and reopened the Continental Pit in 1986. The company stopped mining in 2000, but resumed in 2003 with higher metal prices, and continues at last report, employing 346 people.
Since the 1950s, five major developments in the city have occurred: the Anaconda's decision to begin open-pit mining in the mid-1950s, [48] a series of fires in Butte's business district in the 1970s, [58] a debate over whether to relocate the city's historic business district, a new civic leadership, and the end of copper mining in 1983. In ...
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 ...