From this beginning grew the Anaconda Copper Mining Company, a global mining enterprise featuring the Anaconda and other Butte mines, a smelter at Anaconda, Montana, processing plants in Great Falls, Montana, the American Brass Company, and many other properties, mostly in the United States and Chile. The Anaconda Copper Mining Company was acquired by ARCO in 1977.
The Anaconda mine itself was closed in 1947 after producing 94,900 tons of copper. Its location has been consumed by the Berkeley Pit, a vast open-pit mine.
F. Augustus Heinze used an apex lawsuit to extract ore from the Anaconda Mines. Heinze purchased a small parcel of unclaimed land on top of Butte Hill and several Butte judges, was able to take copper ore that was in the Anaconda companies shafts. After years of losing lawsuits to Heinze the Company shut down all operations in the state putting as much as 80% of the state workforce out of work to force the state legislature to adopt a "change of venue" provision for lawsuits. Eventually the Company bought out all of Heinze's properties and claims.
The Anaconda copper mine appeared in Don Rosa's The Life and Times of Scrooge McDuck (Part 4), where Scrooge became owner of the whole mine as a result of the law of apex. Don Rosa stated that he had based the story on the history of the Anaconda mine.