Bingham Canyon Mine - Wikipedia, the free encyclopedia - http://en.wikipedia.org/wiki...
"Kennecott’s Bingham Canyon Mine is the largest man-made excavation in the world, and is visible with the naked eye from space." - Amit Patel
"The EPA has estimated a 72 mile plume of contaminated groundwater has been created over the course of the mine due to multiple spills and runoff. Long term effects of the underground water supply contamination may include an increased demand for surface water solutions as the population of the Salt Lake valley grows since the county will not be able to tap into the groundwater supply." - Amit Patel