Safford Mine

http://en.wikipedia.org/wiki/Safford_MineAnnual Review, 1996, Exploration overview, copper: Mining Engineering, May, p. 50.Langton J M, Williams S A 1982 - Structural, petrological and mineralogical controls for the Dos Pobres orebody, Lone Star Mining District, Graham County, Arizona: in Titley S R 1983 Advances in Geology of the Porphyry Copper Deposits, Southwestern North America University of Arizona Press, Tucson pp 335-352Lowell, J.D., 1989, Gold mineralization in porphyry copper deposits discussed: Mining Engineering, v. 41, no. 4, p. 227?231.Robinson, R.F., and Cook, A., 1966, The Safford copper deposit, Lone Star mining district, Graham County, Arizona, in Titley, S.R., and Hicks, C.L., eds., Geology of the porphyry copper deposits, southwestern North America: Tucson, University of Arizona PressWilliams, S.A., and Forrester, J.D., 1995, Characteristics of porphyry copper deposits, in Pierce, F.W., and Bolm, J.G., eds., Porphyry copper deposits of the American Cordillera: Tucson, Arizona Geological Society Digest 20, p. 21?34.