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ContributorsO'Reilly, L. J. (Author)
Created1917-02-03
Description

Letter from L. J. O'Reilly to Carl Hayden on behalf of William Randolph Hearst regarding his land ownership within the proposed Grand Canyon boundaries.

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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.
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ContributorsUnited States National Park Service (Publisher)
Created1939-04
DescriptionEducational leaflet on the formation of the Grand Canyon.