The Picketpost Mountain and Iron Mountain 7.5' quadrangles are located east of the Phoenix metropolitan area and are within the Basin and Range physiographic and tectonic province of southwestern North America.
Spencer, J.E., and S.M. Richard. 1995. Geologic Map of the Picketpost Mountain and the Southern Part of the Iron Mountain 7 1/2' Quadrangles, Pinal County, Arizona. Open-File Report 95-15. Tucson: Arizona Geological Survey. September.
Spencer, J.E., and S.M. Richard. 1995. Geologic Map of the Picketpost Mountain and the Southern Part of the Iron Mountain 7 1/2' Quadrangles, Pinal County, Arizona. Open-File Report 95-15. Tucson: Arizona Geological Survey. September.
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