Mining frontiers in the United States have complied with a common pattern. As time went on a very various type of mining would develop based on the use of hefty equipment and the suggestions of trained mining engineers and rock hounds. Island Royale followed this pattern in many methods. There was a very early boom-and-bust period, lasting from 1843 to 1855; a time-out, and after that a resurgence of mining task from 1873 to 1881; again a decrease, and after that a final flurry of mining from 1889 to 1893, finishing with a change to tourism and commercial fishing.
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