Kennecott was once the central mining camp that connected several copper mines nearby. It all started back in 1900 when two prospectors spotted "a green patch far above them in an improbable location for a grass-green meadow." What it turned out to be was the richest concentration of copper ore ever discovered which had up to 70% concentration of pure chalcocite. During these times, Copper became an extremely valuable mineral due to the invention of electricity, automobiles, and telephones, therefore hundreds of people came to this place to work 7 days a week to send the money home to their families. During its active years from 1909 till 1938, Kennecott mines produced over 4.6 million tons of ore that had made a profit greater than 100 million dollars. Unfortunately, in the mid '20s, a local geologist predicted that the end of the high-grade ore bodies was inevitable. Most of the high-grade ores were depleted in the early '30s and the five mines closed one after another. The last train left Kennecott on November 10, 1938, marking the end of its time and leaving the place a ghost town.