Helena, Bozeman, and Southwest Montana Sights

Berkeley Open Pit Mine

  • Continental Dr. at Park St. Map It
  • Butte
  • Mine

Published 01/19/2016

Fodor's Review

Thanks to old mining waste, Butte has the dubious distinction as the location of the largest toxic-waste site in the country. Some underground copper mines were dug up in the 1950s, creating the which stretches 1½ by 1 mi, reaches 1,800 feet deep, and is filled with toxic water some 800 feet deep. A viewing platform allows you to look into the now-abandoned mammoth pit where more than 20 billion pounds of copper, 704 million ounces of silver, and 3 million ounces of gold were extracted from the Butte mining district.

Sight Information


Continental Dr. at Park St., Butte, Montana, 59701, United States

Map It


406-723–3177; 800-735–6814

Sight Details:

  • $2
  • May–Sept., Mon.–Sat. 8–8, Sun. 9–6, weather permitting

Published 01/19/2016


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