Willis, C.F., 1924, Kay hits original ore at 1,200 feet depth: Arizona Mining Journal, v. 8, no. 14, p. 5-7.
Willis, C.F.
Arizona Mining Journal, v. 8, no. 14, p. 5-7.
Mineral District, Massive Sulfide, Copper, Gold, Silver, Mineralization, Subsurface, History, Production, Proterozoic,