Archive for the tag 'copper'

The Copper Mines of Lake Superior by T. A. Rickard: a review

Rickard examined the mining practices of most of the major mines on the range, with the significant exceptions of the Calumet and Tamarack mines, where non-employee mining engineers were not welcome. For the mines he did examine, he highlighted what they did best, the roots of their technical preferences, and any glaring weaknesses he identified in their processes. He then did the same for the associated mills (including, interestingly, the C&H mill on Torch Lake). There’s a wealth of technical detail, and enough economic detail that one could estimate the entire cost of production for many of the mines.

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The Copper Empire, volume 1, by Mike Forgrave: a review

Roughly fifty maps of towns and mining locations on the Keweenaw peninsula, with only a minimal amount of text. These are sort of idealized maps, actually, showing each town/mine’s main features but not tied to specific dates. So (according to the author/mapmaker) some of the maps include structures which not only are no longer there but which never coexisted on the specific site. The result is that each map locates both current (2009) buildings and construction which was dismantled 70 years ago.

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