Johnson, D.W., 1912, The physical history of the Grand Canyon district [abs.]: Science, new series, v. 35, p. 199. Authors Johnson, D.W. Publication Date 1912 Citation Science, new series, v. 35, p. 199. State AZ Province CP TR County CN MO Keywords Areal Structure Stratigraphy Landscape Evolution More Keywords Areal, Structure, Stratigraphy, Landscape Evolution, AzGeoBib RefNum 4969