Filtering by
- All Subjects: Cataract Canyon (Wayne County-San Juan County, Utah)
- All Subjects: Gilliland, Richard P., 1883-1966
- All Subjects: Havasupai Reservation (Ariz.)
- All Subjects: Heard, Dwight Bancroft, 1869-1929
- All Subjects: Theodore Roosevelt Dam (Ariz.)
- Creators: Hayden, Carl T.
Letter from Carl Hayden to H. F. Robinson with attached notes from W. W. Bass and C. H. Gensler. Hayden solitices advice concerning the Havasupai Tribe needs for grazing and access to natural resources.
Letter from Carl T. Hayden to C. H. Gensler, Havasupai Indian Reservation, regarding Hualapai and Cataract Canyons geography.
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 R.P Gilliland regarding the sale of Bright Angel Trail (Ariz.) and construction of the President's Highway from Maine, AZ to the Grand Canyon.
Letter from Carl Hayden to Hugh E. Campbell with an enclosed outline map of the proposed boundaries of Grand Canyon National Park.