For a small town, Butte, Montana is rich in history – from being, at one time, the largest city between Chicago and San Francisco, to being the site of one of the world's most productive copper mines. But the closing of mines, and their distinction of being home to one of the nation's largest Superfund sites, have long cast a shadow over the place. Last summer the residents of Butte turned a corner in their efforts to reverse environmental damage and be delisted as a Superfund site. Correspondent Luke Burbank reports on how the town's past is informing its march forward.

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