Visit to the Adventure Mine, Keweenaw peninsula #Michigan, USA. 1.1 billion year old basalt flows that carry pure #copper. We experienced an underground blast from a safe distance around the corner! #geology#mining
@doktrock Highland Copper is poised to begin their "Copperwood Project", a major copper mining project in the upper-western peninsula.
More on the project here: https://www.highlandcopper.com/news/
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