Centennial #6 was the last of the mines near Calumet to be abandoned and allowed to fill with water. Why do the mines fill with water? This mine was a conglomerate ore body and it followed the dip deep into levels thousands of feet from the surface.
Centennial #6 was the last of the mines near Calumet to be abandoned and allowed to fill with water. Why do the mines fill with water? This mine was a conglomerate ore body and it followed the dip deep into levels thousands of feet from the surface.
