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- All Subjects: Campbell, Gilbert Alan, 1906-1985
- All Subjects: Luhrs Family Photographs
- All Subjects: Geography
- All Subjects: Ryder Ridgway Photographs
- Member of: 100 Years of Grand: The Grand Canyon Centennial Project
Detailed map of Granite Gorge section of the Grand Canyon from the pamphlet titled, "Titan of Chasms: Grand Canyon of Arizona."
Letter from Carl T. Hayden to C. H. Gensler, Havasupai Indian Reservation, regarding Hualapai and Cataract Canyons geography.
Map of proposed addition to Grand Canyon National Park Boundaries. Circa 1932.
Black and white print of man and woman sitting at an overlook.
Sepia stereo card of a man sitting on a rock with printed annotation, "(12) Down the Granite Gorge of the Colorado (1,200 feet deep) from Peritese Point, Grand Canyon of Arizona. Copyright 1903 by Underwood & Underwood."
Black and white print of the south rim from Tuweep.
Black and white print of people riding mules down a trail. Circa 1940-1949.
Black and white print of people riding mules down a steep trail. Circa 1940-1949.