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View Diary: Postcard from Muskegon, MI (277 comments)

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  •  There's still native copper in the UP! (2+ / 0-)
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    jennifree2bme, Freakinout daily

    and some silver etc. The mines closed when I was a kid because of competition from Bolivia and places like that. But there's still stuff in the ground.

    Furthermore, there are actually kimberlite pipes in the UP that produce diamonds. That geology extends from Powers/Spaulding/Hermansville West towards and beyond Lake Gogebic.

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