Woodyard, K.E., 1956, Clays of St. John's vicinity, Arizona and New Mexico: Austin, University of Texas, M.S. thesis. Authors Woodyard, K.E. Publication Date 1956 Citation Austin, University of Texas, M.S. thesis. State AZ Province CP County AP Placenames Little Colorado River Valley St. Johns area Witch Well area Keywords Clay Sedimentary Petrology More Keywords Clay, Sedimentary Petrology, AzGeoBib RefNum 11436