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- All Subjects: Coconino County (Ariz.)
- All Subjects: Heard, Dwight Bancroft, 1869-1929
- All Subjects: Hualapai Indian Tribe of the Hualapai Indian Reservation, Arizona
- All Subjects: Williams, Lawrence S., 1868-1946
- Creators: Hayden, Carl T.
- Creators: Heard, Dwight
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 Stephen Mather regarding Coconino County's willingness to dispose of Bright Angel Trail as long as the funds acquired would go to building a road between Old Trails Highway at Maine to the Grand Canyon.
Letter from Carl Hayden to M. J. Riordan expressing his support for Coconino County in turning over the Bright Angel Trail to the federal government.
Letter from Dwight B. Heard, president and publisher of The Arizona Republican, to Carl T. Hayden about a visit by Stephen Mather.
Letter from Carl Hayden to Hugh E. Campbell with an enclosed outline map of the proposed boundaries of Grand Canyon National Park.