Waesche, H.H., 1932, Comparative porosity of rock formations in Grand Canyon: Grand Canyon Nature Notes, v. 6, p. 35-37. Authors Waesche, H.H. Publication Date 1932 Citation Grand Canyon Nature Notes, v. 6, p. 35-37. State AZ Province CP TR County CN MO Keywords Sedimentary Petrology More Keywords Sedimentary Petrology, AzGeoBib RefNum 10702