Mitchell, C.M., and Zandle, G.L., 1965, Aeromagnetic map of the Casa Grande area, Maricopa and Pinal Counties, Arizona: U.S. Geological Survey Geophysical Investigations Map GP-0548, 1 sheet, scale 1:62,500.
Mitchell, C.M., and Zandle, G.L., 1965, Aeromagnetic map of the Casa Grande area, Maricopa and Pinal Counties, Arizona: U.S. Geological Survey Geophysical Investigations Map GP-0548, 1 sheet, scale 1:62,500.
Mineral District, Magnetic Survey,