Leonard, R.J., 1929, An earth fissure in southern Arizona: Journal of Geology, v. 37, no. 8, p. 765-774. Authors Leonard, R.J. Publication Date 1929 Citation Journal of Geology, v. 37, no. 8, p. 765-774. State AZ Province BR County PN Placenames Picacho Basin Keywords Earth Fissure Earthquake Quaternary Faulting Subsidence More Keywords Earth Fissure, Earthquake, Quaternary Faulting, Subsidence, AzGeoBib RefNum 5882