Kennecott was never really a town, but more a mining camp in southeast Alaska. In 1901, mining students spent months sampling the soil and digging around Kennicott Glacier before determining it was possibly the richest copper site in the world. Between 1909 and 1938, Kennecott mines produced over 4.6 million tonnes of ore that contained £1.2 billion ($1.55bn) of copper. But by the late 1930s, the mines were depleted and the facilities abandoned. It has been a national park since.

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