Because the company in the video -- Atlantic Richfield Company, aka ARCO -- acquired the pit in 1977 only to shut it down in 1982 after discovering what a white

Because the company in the video -- Atlantic Richfield Company, aka ARCO -- acquired the pit in 1977 only to shut it down in 1982 after discovering what a white elephant it was. The company that actually dug the thousands of miles of tunnels and later the pit was Anaconda Copper (one of the most rapacious, amoral corporations to ever exist) which went belly up in 1983. Anaconda Copper made fortunes for the usual suspects like the Rockefellers and Rothschilds throughout the 20th century. Good luck clawing any restoration money back from them after its been laundered through generations. If you ever find yourself driving though Butte I highly recommend a stop to see the Berkely pit, the access towers, the enviromental devestation and the excellent mining museum. Its facinating.