Farnham, L.L., and Stewart, L.A., 1958, Manganese deposits of western Arizona: U.S. Bureau of Mines Information Circular I.C. 7843, 87 p.
Farnham, L.L., and Stewart, L.A., 1958, Manganese deposits of western Arizona: U.S. Bureau of Mines Information Circular I.C. 7843, 87 p.
Mineral District, Manganese, Locale, Mineralization, Production, History,