The Berkeley Pit is a former open pit copper mine in Butte, Montana. Approximately 320 million tons of ore and over 700 million tons of waste rock were mined from the Butte Hill. Put another way, the Berkeley Pit and Butte mines produced enough copper to pave a four-lane highway four inches thick from Butte to Salt Lake City and 30 miles beyond. Today, the Pit is filling with highly contaminated water, and managed as a federal Superfund environmental cleanup site.
The Montana Bureau of Mines & Geology (MBMG) developed this computer model showing Butte topography and the corresponding underground tunnels from the years of historic […]Read More...
from the Google Earth/Time Magazine Web App
Illustrated information regarding Berkeley Pit water levels and monitoring compliance point water levels around the Pit