Wikipedia:POTD column/July 25, 2006

Miners pose with lunch pails in hand on a pile of "poor rock" (waste rock), which had been broken off the richer copper-bearing rock in the Tamarack #5 Shaft-Rockhouse (seen in the background) at the Tamarack Mine, located in Copper Country, Michigan, USA. This picture (from 1905) was most likely taken during the shift-change, just as miners were going down into, or had just come up from the mines.

Photo credit: Adolph F. Isler
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