The Grand Cañon of the Colorado, near the foot of To-ro-weap Valley; river, 3,000 feet below. (F. 73) No. 36

War Department, Corps of Engineers, U.S. Army. Photograph. Near Fine. Albumen stereoview [9 1/4 cm x 15 cm] on a yellow mount [10 cm x 18 cm] Geographical and Geographical Explorations and Surveys West of the 100th Meridian backstamp. Printed label on the reverse. Expedition of 1872. William Bell, who had established a studio in Philadelphia, was commissioned in 1872 by Lieutenant George Wheeler to accompany him as a photographer on an expedition into Arizona. Later, he worked as a photographer for the Pennsylvania railroad and with an expedition to Patagonia. (from Getty Museum).