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Copper<br />Lake Superior copper district, Keweenaw County, Michigan, USA<br />170 mm x 75 mm x 3 mm<br /> (Author: Robert Seitz)

Copper
Lake Superior copper district, Keweenaw County, Michigan, USA
170 mm x 75 mm x 3 mm
(Author: Robert Seitz)

Dimensions: 1600 x 1200
File size: 216.22 kbytes
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