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ContributorsParrish, Wayne W. (Author) / U.S. National Aeronautic Association (Publisher)
Created1937-01
DescriptionMagazine article describing the experience of flying over the Grand Canyon in a plane.
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ContributorsMatthes, F. (Author) / Evans, R. T. (Author) / The Military engineer (Publisher)
Created1926-05
DescriptionGeological Survey of the Grand Canyon in published journal. Vol. XVIII, No. 99.