|Mystery thing near Warm Springs, Montana. It's five and a half miles away from me on I-90.|
|Anaconda Smelter. C. 1950|
"Montana Mosaic: The Rise and Fall of the Anaconda Copper Mining Company" (2006)
Anaconda built Montana. They were an industrial powerhouse. The Anaconda company is gone from the state, but the poisonous legacy of it's mining operations remains. Montana has the largest EPA superfund site.