Black-and-white photographic prints related to copper mining and other types of mining that was done in Houghton and Keweenaw counties. Mines identified in this series includes Quincy Mine, Baltic Mine, Champion Mine, Red jacket Shaft, Calumet and Hecla, Zenmac Mine located between Rossport and Schreiber in Ontario, Adventure Copper Mine, White Pine Mining Co., and Arcadian Copper Mine.