Filtering by
- All Subjects: Grand Canyon (Ariz.)
- All Subjects: Mather, Stephen Tyng, 1867-1930
- All Subjects: Phoenix Zoo (Ariz.)
- Member of: 100 Years of Grand: The Grand Canyon Centennial Project
- Member of: Arizona PBS Productions Collection
Speech by Carl T. Hayden offering a motion to authorize a road an trail construction program in Grand Canyon National Park "to make these natural wonders accessible to the American people." The speech appears in the Congressional Record, 68th Congress, First Session.
Letter from J. E. Gavin to Louis C. Cramton regarding the Bright Angel Trail controversy, including newspaper clipping.
Letter from Alexander Vogelsang to Homer P. Snyder regarding land allocation for the Havasupai Tribe.
Letter from C. H. Gensler, Havasupai Agency to Carl Hayden regarding boundary lines.
Letter from Carl T. Hayden to C. H. Gensler, Havasupai Indian Reservation, regarding Hualapai and Cataract Canyons geography.
Letter from W. W. Bass to Carl Hayden regarding the right to his property.
Letter from George Otis Smith, U.S. Geological Survey to Carl Hayden regarding asbestos mining prospects in the Grand Canyon.