Filtering by
- All Subjects: Agriculture
- All Subjects: Heard, Dwight Bancroft, 1869-1929
- All Subjects: Rickel, Joseph B., 1895-1974
- All Subjects: Smith, George Otis, 1871-1944
- Creators: Hayden, Carl T.
Letter of introduction for Dwight B. Heard on the arrival of National Park Service Director Stephen T. Mather to Phoenix. Mather's visit includes trips to Roosevelt Dam and Tumacácori.
Letter from Carl Hayden to W. W. Bass concerning the passing of the national park bill. Hayden states that he will try to make the bill as advantageous to Arizona miners and farmers as possible, but the land will either remain as a national monument or become a national park. A postscript is added concerning the land allocated for the Havasupai Tribe.
Letter from Carl Hayden to George Otis Smith asking his advice regarding the mining of asbestos deposits in the Grand Canyon.
Letter from Carl T. Hayden to J. B. Rickel concerning proposed changes to Grand Canyon National Park boundaries.