Pewe, T.L., Wellendorf, C.S., and Bales, J.T., 1986, Geologic cross sections of Papago Park pediment, Tempe quadrangle, Maricopa County, Arizona, in Pewe, T.L., Wellendorf, C.S., and Bales, J.T., Environmental geology of the Tempe quadrangle, Maricopa County, Arizona: Arizona Bureau of Geology and Mineral Technology Geologic Investigation Series Map GI-2-C, 1 sheet, scale 1:8,700.