These 25 mounted photographs, depicting views of Yellowstone National Park, and various lakes and mountains in Colorado, Montana, and Grand Teton National Park, were taken by renowned American photographer William Henry Jackson between 1871 and 1873. They represent part of the body of work created by Jackson during his tenure as photographer for exploratory expeditions ("Department of the Interior U.S. Geological Survey of the Territories") of the American West sponsored by the Department of the Interior and led by geologist Frederick V. Hayden. The photographs all bear a stamp on the reverse: "Library/University of Southern California/College of Liberal Arts/Los Angeles, Cal." and may have been part of a reference collection at one time.