Black and white print with typescript annotation, "Upstream view of the canyon of Colorado River at the bridge site near Lees Ferry, Arizona." Handwritten annotation, "Exhibit I." Circa 1920-1929.

Black and white print with typescript annotation, "Close up view of Vulcan Throne, Grand Canyon, 89 miles below Bright Angel Creek." Handwritten annotation, "Exhibit IV." Circa 1920-1929.

Black and white print of three women in a cable rig above the Colorado River.

Black and white, wide angle, mounted print with handwritten annotation, "7 Grand Canyon of Colorado River at Bright Angel Trail May-6-03."

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."

Letter from J. E. Gavin to Louis C. Cramton regarding the Bright Angel Trail controversy, including newspaper clipping.

Letter from Carl T. Hayden to Louis C. Cramton about potential prosecution of people with mining claims within park boundaries.