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- All Subjects: Cataract Canyon (Wayne County-San Juan County, Utah)
- All Subjects: United States. Congress. Senate
- All Subjects: Flagstaff (Ariz.)
- All Subjects: Frontier and pioneer life -- Arizona
- All Subjects: Gold, Frank M., 1878-1976
- All Subjects: Heard, Dwight Bancroft, 1869-1929
- All Subjects: Nature conservation -- Political aspects -- United States -- History -- 20th century.
- Creators: Hayden, Carl T.
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 W. W. Bass informing him that his contribution for maintaining the roads at the Grand Canyon has been reduced to $50 per year. Hayden also notes that no further action on national park status will be taken until December 1917 during the regular session of congress.
Letter from Carl Hayden to Hugh E. Campbell with an enclosed outline map of the proposed boundaries of Grand Canyon National Park.
Letter from Carl Hayden to C. T. Woolfolk thanking him for his support on the proposed bill. Hayden writes that the bill will not be introduced into the current session of Congress as any new legislation would be impossible to pass, but he is optimistic over the bill's future.
Letter from Carl T. Hayden to F. R. Goodman concerning the purchase of Bright Angel Trail and construction of an approach road to the park.
Letter from Carl Hayden to F. M. Gold about the purchase of Bright Angel Trail.
An audio recording of the award ceremony featuring remarks from Senator Hayden, US Secretary of Agriculture Orville Freeman and US Secretary of the Interior Stewart Udall.