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- All Subjects: South Kaibab Trail (Ariz.)
- All Subjects: Automobile travel
- All Subjects: Flora and fauna
- All Subjects: Goodman, Frank R., 1882-1968
- Member of: 100 Years of Grand: The Grand Canyon Centennial Project
Letter from Carl Hayden to M. J. Riordan expressing his support for Coconino County in turning over the Bright Angel Trail to the federal government.
Letter from F. R. Goodman to Carl Hayden expressing Coconino County's interest in handing over Bright Angel Trail to the government provided a sufficient amount of money is appropriated to build a road from Maine to the Grand Canyon.
Letter from Carl Hayden to F. R. Goodman regarding the construction of new roads.
Handwritten cover titled, "Nature Notes of Grand Canyon, Polyphemus Moth, Female, Found at Grand Canyon, 5 July 1928, Vol. 3 - No. 2." Cover includes a drawing of the moth.
Typescript report, black and white, describing the birds of Grand Canyon National Park with cover drawing of a bald eagle.
Black and white print of people riding mules down a trail. Circa 1940-1949.