Gold

Anthony, E.Y., and Titley, S.R., 1985, Inverse solution for crystal fractionation in a periodically tapped magma chamber, Sierrita porphyry copper deposit, Arizona [abs.]: Geological Society of America Abstracts with Programs, v. 17, p. 514.

Mining Journal, 1926, Kay Copper shows great improvement: Mining Journal, v. 10, no. 7, p. 9.

Yavapai Magazine, 1918, Hassayampa's many mines: Yavapai Magazine, v. 6, no. 5, p. 1-8, 16-17.

Yavapai Magazine, 1918, Senator-Groom Creek mines: Yavapai Magazine, v. 6, no. 7, p. 1-8.

Andrus, D.E., 1931, Milling methods and costs at the Montana mine concentrator of the Eagle-Picher Lead Co., Ruby, Ariz.: U.S. Bureau of Mines Information Circular I.C. 6497, 15 p.

Andreasen, G.E., and Galat, G.A., 1966, Aeromagnetic map of Safford and vicinity, Graham and Greenlee Counties, Arizona: U.S. Geological Survey Open-File Report [unnumbered], 1 sheet, scale 1:125,000.

Andreasen, G.E., Mitchell, C.M., and Tyson, N.S., 1965, Aeromagnetic map of Tombstone and vicinity, Cochise and Santa Cruz Counties, Arizona: U.S. Geological Survey Open-File Report (Geophysical Investigations Preliminary Map), 1 sheet, scale 1:125,000.

Andreasen, G.E., and Pitkin, J.A., 1964, Aeromagnetic map of the Twin Buttes area, Pima and Santa Cruz Counties, Arizona [abs.]: Geophysical Abstracts, no. 209, item 315.

Andreasen, G.E., and Pitkin, J.A., 1963, Aeromagnetic map of the Twin Buttes area, Pima and Santa Cruz Counties, Arizona: U.S. Geological Survey Geophysical Investigations Map GP-0426, 1 sheet, scale 1:62,500.

Anderson, R.E., Longwell, C.R., Armstrong, R.L., and Marvin, R.F., 1972, Significance of K-Ar ages of Tertiary rocks from the Lake Mead region, Nevada-Arizona: Geological Society of America Bulletin, v. 83, no. 2, p. 273-287.