Imlay, R.W., 1939, Paleogeographic studies in northeastern Sonora: Geological Society of America Bulletin, v. 50, p. 1723-1744. Authors Imlay, R.W. Publication Date 1939 Citation Geological Society of America Bulletin, v. 50, p. 1723-1744. State AZ MEX Province BR County CH SC Placenames Patagonia Mts. San Rafael Valley Mule Mts. Keywords Paleogeography Areal Structure Stratigraphy More Keywords Paleogeography, Areal, Structure, Stratigraphy, AzGeoBib RefNum 4808