Formal Title, if present ; General description
More specific description, including format, medium, subject matter
The collection this photo belongs to contains 103 photographs (including 19 stereographs) taken by members of the Records of the Past Exploration Society who participated in an expedition to Arizona, Utah, Colorado, and New Mexico in the summer of 1902 to visit Ancestral Puebloan sites in the region. The photographs document the expedition members, including Henry Mason Baum, Clark McAdams, and John Mather Pfeiffenberger; the expedition's camps and wagon trains; petroglyphs and artifacts; and the expedition's visits to Mesa Verde, Aztec (now Aztec Ruins National Monument), Chaco Canyon (now Chaco Culture National Park), the Petrified Forest (now Petrified Forest National Monument), the San Juan River Valley
in New Mexico, and other unidentified locations. The photographer or photographers are unknown, but the images may have been collected by Clark McAdams for printing in the St. Louis Post-Dispatch newspaper.