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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).
Since the 1950s, five major developments in the city have occurred: the Anaconda's decision to begin open-pit mining in the mid-1950s; a series of fires in Butte's business district in the 1970s; 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 the 1950s, the ACM began open-pit mining in Butte, creating a steadily growing pit, known as the Berkeley Pit, east of the main business district. In the mid-1970s, copper prices collapsed and the ACM was bought out by the Atlantic Richfield Company, . ARCO ceased mining in Butte in 1980 and shut off the deep pumps in 1982, ending what Daly ...
Anaconda headframes overlooking the city of Butte. HAER photo Chalcocite replacing covellite, said to be found in 1883, in the early days of mining at Butte. Size 8.0 x 6.3 x 3.6 cm. 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 ...
The copper mines of Butte produced a strong union presence in the city; by 1887, all of the city's mines were unionized. This "closed shop" persisted until 1914 when internal struggles destroyed the once powerful Butte Miners Union of the Western Federation of Miners and opened the mines to corporate control. [3] [4]
Troy Mine: Troy, Lincoln County, Montana: Revett Minerals, Hecla Mining: Closed 2015; active between 1981 and 1983, and 2005–2015 Yerington - Anaconda: Lyon County, Nevada: Anaconda Copper: Closed since 1978 Pahaquarry: Warren County, New Jersey: Closed since 1928 Schuyler: Bergen County, New Jersey: Closed since 1901 Burra Burra: Ducktown ...
An 18-year-old died and his sister was rescued after a hole they were digging in the sand at a New Jersey beach collapsed in on them Tuesday, police said.
On April 21, 1920, during a miners strike in Butte, Montana's copper mines, company guards fired on striking miners picketing near a mine of the Anaconda Copper Mining Company, killing Tom Manning and injuring sixteen others, an event known as the Anaconda Road massacre. His death went unpunished.