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Letter From Carl Hayden to George Otis Smith, U.S. Geological Survey

ContributorsHayden, Carl T. (Author) / Smith, George Otih (Author)
Created1918-04-25
Description

Letter from Carl Hayden to George Otis Smith asking his advice regarding the mining of asbestos deposits in the Grand Canyon.

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Letter From T. E. Pollock, Arizona Central Bank, to Carl Hayden

ContributorsPollock, T. E. (Author)
Created1916-04-13
Description

Letter from T. E. Pollock to Carl Hayden expressing his dissatisfaction with the proposed boundaries in the national park bill.

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Map of Grand Canyon National Park

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.