Studebaker, I.G., 1960, Structure and stratigraphy of the Helmet Peak area, Pima County, Arizona: Tucson, University of Arizona, M.S. thesis, 26 p. Authors Studebaker, I.G. Publication Date 1960 Citation Tucson, University of Arizona, M.S. thesis, 26 p. State AZ Province BR County PM Placenames Sierrita Mts. Keywords Areal Structure Stratigraphy More Keywords Areal, Structure, Stratigraphy, AzGeoBib RefNum 9855