Pepin, S.D., 1916, Origin of Grand Canyon, including discovery and brief history: Los Angeles, J.A. Alles Co., 30 p. Authors Pepin, S.D. Publication Date 1916 Citation Los Angeles, J.A. Alles Co., 30 p. State AZ Province CP TR County CN MO Keywords Areal History More Keywords Areal, History, AzGeoBib RefNum 7836
