Letter from Harold Greene to Carl Hayden regarding the proposed boundaries for the national park bill.

Letter from Carl T. Hayden to C. H. Gensler, Havasupai Indian Reservation, regarding Hualapai and Cataract Canyons geography.

Amendments to the bill establishing the Grand Canyon a National Monument. Circa 1908.

Letter from Carl Hayden to Hugh E. Campbell with an enclosed outline map of the proposed boundaries of Grand Canyon National Park.

Black and white print of people riding mules down a trail. Circa 1940-1949.

Black and white print of the south rim from Tuweep.

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 man and woman sitting at an overlook.