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ContributorsWoolfolk, C.T. (Author)
Created1917-01-06
Description

Letter from C. T. Woolfolk to Carl Hayden expressing his support for the national park bill.

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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.