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The Tamarack, Osceola, Tamarack Junior & Kearsarge mines- The Tamarack Mining Company was incorporated in 1882 and is opened on the underlay of the Calumet conglomerate reef, (on a tract west of land held by Calumet and Hecla) and to some extent upon the Osceola amygdaloid as well, the latter being opened by means of crosscuts run east from the openings on the conglomerate. 5 shafts were sunk...
The mine fatalities of Ontonagon County, Michigan, Part of the Lake Superior Mine District. The Lake Mines 3 districts are: -Portage Lake District -Keweenaw Point District -Ontonagon District From 1855 to 1975 it is estimated there have been 2,000 mine related deaths for Keweenaw county, at least 1,700 for Houghton, and 100 for Ontonagon. Ontonagon County is located along the south shore ...