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Copper<br />Lake Superior copper district, Keweenaw County, Michigan, USA<br />75 mm x 60 mm x 50 mm<br /> (Author: Robert Seitz)

Copper
Lake Superior copper district, Keweenaw County, Michigan, USA
75 mm x 60 mm x 50 mm
(Author: Robert Seitz)

Dimensions: 1600 x 1200
File size: 501.91 kbytes
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