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- All Subjects: Camping
- All Subjects: Panoramic photograph
- All Subjects: Civilian Conservation Corps (U.S.)
- All Subjects: Watchtower at Desert View (Ariz.)
- Member of: 100 Years of Grand: The Grand Canyon Centennial Project
Letter from Joseph J. Cotter to Carl Hayden regarding the use of water power and summer homes in the proposed park boundaries.
Letter from Carl Hayden to J. V. Lloyd, Assistant Superintendent of Grand Canyon National Park, thanking him for his support in maintaining Civilian Conservation Corp companies at full strength. Handwritten note in red pencil, "Jack - For my attention in January. Hayden."
Letter from J. V. Lloyd to Carl Hayden with an attachment of local opinions of the Army and Technical Services as to why the Civilian Conservation Corp companies should be maintained, continuously, at full strength.
Letter from The Camp Fire Club of America urging Carl Hayden to introduce a bill that would grant National Park status to the Grand Canyon.