Timothy H. O'Sullivan, 1871-1874 (survey), 1874 (expedition), 50. Shoshone Falls, Snake River, Idaho. Gorge and natural bridge, in the fore-ground., [Wheeler Survey, Explorations and Surveys West of the 100th Meridian], Stereocard, detail, Etherton Gallery, LL/24807
Timothy H. O'Sullivan 1871-1874 (survey), 1874 (expedition) 50. Shoshone Falls, Snake River, Idaho. Gorge and natural bridge, in the fore-ground. [Wheeler Survey, Explorations and Surveys West of the 100th Meridian]
