Michigan

Michigan Copper

Apparently the story-telling pretty much begins with Angus Murdoch’s 1943 epic, Boom Copper. Later retellings, even if they only deal with a narrow topic like Calumet and Hecla, refer to Murdoch as the source of much of the color and legend associated with the region. The book is divided between the historical narrative of the copper industry in the region, and the stories of the communities and personalities of the region.

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Interesting that the UP was the scene of North America’s first mineral “rush,” complete with Deadwood-esque boomtowns and characters. Pure metal deposits were unknown to science, and scientists had trouble believing that commercial quantities of copper could be brought up that would require no smelting to remove impurities. What were the implications for the overall US copper industry? Compared to foreign competitors who had to smelt their ore (until Coro Coro, Bolivia)?

“Three quarters of all the metal taken from the Cliff came out in the form of masses weighing anywhere from a ton to a hundred tons…Nowhere in the world had so much copper ever been taken from so small an area of mineral land.” (54, 56) Sam Knapp’s “Minesota” mine holds the record for the size of a single chunk: either 420 or 564 tons, depending on 1856 reports. Murdoch says the Minesota is also distinguished as the most productive copper mine in history, “in proportion to the amount of labor and capital expended.” From 1852-1856 (after four years of development beginning in 1848), “the stockholders’ investment in the mine had doubled itself, and by 1876 they had received thirty dollars in dividends for every dollar invested. At one time in the fifties, more than 2,000,000 pounds of mass copper was in sight, much of it all ready for cutting up...Probably nowhere else on earth has there been a mine whose skips ran up and down through a solid copper shaft.” (92-3)

Murdoch’s economic analysis of Michigan copper is a little sketchier than his setting and character descriptions. He notes that 1870 was the first time in history copper went below twenty cents per pound (95), and that “fissure mining” was only successful three times (the Central, the Cliff, and the Minesota), but spurred a generation of mining ventures. “Of the 112 discoverable mining corporations which have operated in Ontonagon County,” he says, “only the Minesota has paid more in dividends than it collected in assessments” (97). The story of silver (especially on Silver Islet in Thunder Bay) provides an interesting contrast between the economics of precious metals and copper.

Several of the characters like Sam Hill, Alexander Agassiz, and Sam Knapp would probably make interesting subjects. Murdoch’s treatment of the Secrétan scandal, the paternalism of C & H, and the relationship between organized labor and the mining companies, is suggestive but short on detail. He mentions that copper demand is relatively inelastic, but follows economic trends due to its use in infrastructure. This is probably more true since the maturity of the electronics industry than it was during most of the Michigan heyday. But it’s interesting that he distinguishes between copper and other minerals from a demand perspective.