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Ontonagon Mine (1), Rockland, Ontonagon Co., Michigan, USA

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Location is approximate, estimate based on other nearby localities.
 
Latitude & Longitude (WGS84): 46° North , 89° West (est.)
Margin of Error:~1km
Locality type:Mine
Köppen climate type:Dfb : Warm-summer humid continental climate


The Ontonagon Copper Company was organized in 1844 to explore two separate tracts of land; one around the bluffs near Rockland and the other near Victoria where the Ontonagon Boulder was discovered. Work on the Rockland location began in 1845 but very little copper was found. The mine worked a vein of epidote and calcite with some copper. Because of this, the mine amassed a great deal of debt. By 1846, three shafts were sank on the vein with little to show for it. In 1848, the lands of the Ontonagon Mine was split in half; the northern half became the Minesota Mine and the southern half the Michigan Mine.

Regions containing this locality

Keweenaw Peninsula, Michigan, USA

Peninsula - 232 mineral species & varietal names listed

No minerals currently recorded for this locality.

List of minerals for each chemical element

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Hamka, T., 2011, The Copper Mines of Ontonagon County, Michigan. Copperlady Press. 154 pp.
DeGood, L., 2011, Michigan Copper Mining Stocks and Bonds. 401 pp.
Kilpela, T., 1996, Copper Mining in Ontonagon County. 17 pp.


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