Centennial No. 2 Shaft, Centennial Mine, Centennial, Houghton Co., Michigan, USA

Ref.: U.S.G.S PP 144, "Red Gold and Tarnished Silver", by CCRMC.

One of the seven incline shafts of the Centennial Copper Co. For more information about the mine history, see the "Centennial Mine" listing. Minerals common here are copper crystals, silver, datolite, and very gemmy epidote/quartz crystals. At last check, the piles were almost gone due to the fact that Houghton Co. owns the piles and uses them for their activities.