Zietz, Isidore, and Kirby, J.R., 1968, Transcontinental geophysical survey (35o-39o N), magnetic map from 110o to 112o W longitude: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-533-A, 1 sheet, scale 1:1,000,000. Authors Zietz, Isidore, and Kirby, J.R. Publication Date 1968 Citation U.S. Geological Survey Miscellaneous Geologic Investigations Map I-533-A, 1 sheet, scale 1:1,000,000. State AZ Province CP County AP NA CN Keywords Magnetic Survey More Keywords Magnetic Survey, AzGeoBib RefNum 15225