Filtering by
- All Subjects: Mather, Stephen Tyng, 1867-1930
- All Subjects: Havasupai Tribe of the Havasupai Reservation, Arizona
- All Subjects: Water-power
- Member of: 100 Years of Grand: The Grand Canyon Centennial Project
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 Harold Greene to Carl Hayden regarding the proposed boundaries for the national park bill.
Letter from Joseph J. Cotter to Carl Hayden regarding the use of water power and summer homes in the proposed park boundaries.
Letter from Bernie Zachau to Carl Hayden regarding water power in the Grand Canyon.
Letter from Henry Graves to Carl T. Hayden regarding the land ownership and grazing rights of the Havasupai.
Letter to Carl T. Hayden regarding a water-power bill in effect for the Grand Canyon.
Letter from Stephen T. Mather to Carl Hayden with markup of bill S 390 for the proposed National Park.
Letter from Carl T. Hayden to C. H. Gensler, Havasupai Indian Reservation, regarding Hualapai and Cataract Canyons geography.
Letter from C. H. Gensler, Havasupai Agency to Carl Hayden regarding boundary lines.
Letter from Alexander Vogelsang to Homer P. Snyder regarding land allocation for the Havasupai Tribe.