Rystrom, V.L., Finn, C.A., and King, T.V.V., 2002, Geologic interpretation of aeromagnetic maps in the Santa Cruz Basin-Patagonia Mountains area, south-central Arizona: U.S. Geological Survey Open-File Report 02-0100 [available only online: http://geopubs.wr.usgs.gov/open-file/of02-100].