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ContributorsPotter, A. F. (Author)
Created1918-01-10
Description

Letter from A. F. Potter to Carl T. Hayden describing John H. Page's request to build a railway for the Canyon Copper Company as "impractical."

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Created1926-04-02
DescriptionGrand Canyon National Park General Regulations.
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Created1975
Description

Final environmental statement: proposed master plan, Grand Canyon complex, Arizona, John E. Cook as acting director for plan, book.

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Created1957 to 1968